4th grade math test printable. Join K5 to save time, skip ads and access more content.

Th. Add and subtract Roman numerals. The big ideas in Fourth Grade Math include developing understanding with multi-digit multiplication and division, understanding fraction equivalence, adding and subtracting fractions with like denominators, and multiplication of fractions and whole numbers, and analyzing geometric figures based on their properties. Under each answer box, fill in the circle that matches the number or symbol you wrote above. A score of 166 points is 80%. These assessments include questions that target procedural and conceptual understanding. The total is 207 points. To bolster the capabilities of 4th-grade students in mastering the mathematics section of the SOL test, we have meticulously crafted 4th-grade SOL math worksheets. 70% to 79%. The digital version contains exactly the same content as the printable version, but has been redesigned to work digitally in Google Slides. With adequate exercises in multi-digit multiplication, and division, equivalent fractions, addition and subtraction of fractions with like denominators, and multiplication of fractions by whole numbers, analyzing and classifying geometric figures based on their Try for Free. including irrelevant data within word problems so students must understand the context before applying a solution. Digital access can be found on pages 3-4 of the PDF. Answer key. Unit 4 Get ready for division. These worksheets are designed to enhance both the […] FREE 2023 - 2024 Arizona's Academic Standards Assessment practice tests and sample questions for Grades 2-8 and High School. 1. Division Dash. 712. Classify geometric figures as parallel, perpendicular, and symmetrical. This product is appropriate for 3rd-4th grade students or any student that may need extra support in this area (RTI, SPED, ELL). You want to buy 7 laptop costing each 800 dollars. Domain. The practice test includes: 40 multiple-choice questions. f, and the relationships between, plane geometric figures. This pack includes 4 printable charts that are ready to go! INCLUDED RESOURCES (9 PAGES):1 Blank 100 Chart 1 Filled 100 Chart 1 Blank 120 Chart 1 Filled 120 Chart Please note that this product is NOT FOR COMMERCIAL USE, although most of my products are. Hope you enjoy it! Here is a comprehensive collection of FREE printable math worksheets for the 4th Grade OST test to help your students review basic math concepts. 6 Mad Minute Addition Tests. OA. The Lumos MATH & ELA worksheets can be easily downloaded/printed and used for homework help and skills practice. ndards Grade 4Introduction: Summary of GoalsGRADE FOURBy the end of grade four, students understand large numbers and addition, ubtraction, multiplication, and division of whole number. 1. 174 B. Which equation could be used to find the number of miles the family will drive each day? A 1,584 + 4 = 1,588 B 1,584 × 4 = 6,336 C 1,584 ÷ 4 = 396 D 1,584 – 4 = 1,580 81081 25 Select some topics/skills to continue. Addition of 3 sets of numbers. This year, SED is again releasing large portions of the 2019 NYS Grades 3-8 English Language Arts and Mathematics test materials for review, discussion, and use. Weight Distribution. These 4th grade math worksheets provide skills and experience necessary to ace topics like fractions and decimals as well. There are two interactive math features: the math flash cards and dots math Factors, multiples, and primes along with concepts like mensuration form the base for higher grades. This is a FREE printable and digital fractions review (or quiz!) that covers all fraction operations. Available for Math and English Language Arts. Fill-in-the-Blank – For these task cards, the students will complete a sentence with the correct math vocabulary term or terms. 4th Grade - Free Math Worksheets, Games, Tests etc - MathFox. Enter your answer in the answer boxes at the top of the answer grid. Smarter Balanced Free Worksheets for Grades 3 to 8. Includes 46 questions and answers. FREE 4th Grade Math Worksheets Packet: FREE Subtraction with Regrouping Worksheets. 3 short answer response questions. Represent verbal statements of multiplicative comparisons as multiplication equations. 4th-grade students can refer to this free and comprehensive North Carolina End-of-Grade math worksheet to assess what they have learned, and by solving the practice questions, they can find and fix their problems. Click on each topic and download the math worksheet for 4th Grade MAP. Say goodbye to grading papers! SELF-GRADING quizzes will change your life. Interpret a multiplication equation as a comparison, e. Make a solid mark that completely fills the circle. 4. A score of 87% on a 4th grade math 205 Jefferson St. Enjoy learning key math concepts, such as multi-digit arithmetic, fractions, decimals, factors and multiples, prime and composite numbers, measurements, time concepts, lines and angles, word problems and more. 4th Grade EOG Math Worksheets: FREE & Printable. New York State administered the Mathematics Tests in May 2023 and is making approximiately 75% of the questions from these tests available for review and use. No exception! In fact, no calculator should be used at all to solve this 4th grade math test. Scholastic Teachables (formerly Scholastic Printables) has more than 4,500 4th grade worksheets that span more than 20 subjects and themes targeted for 4th grade skills, including language arts, reading , writing , math , science , social studies, holidays, seasons and weather, and many others! Sign up today and get instant online Sep 7, 2020 · Welcome to our FREE 4th Grade MAP Math practice test, with answer key and answer explanations. Free online practice resource for FAST Grade 4th Math subject consists of practice tests, sample questions, printed workbooks, sample worksheets, and answer-key etc,. FREE Hundreds Chart Printables: 100 and 120. 5th grade math worksheets: Multiplication, division, place value, rounding, fractions, decimals , factoring, geometry, measurement & word problems. View and take test below. It is the more difficult part of the test, covering fractions and decimals. 2021. ability–Mathematics (NeSA–M). 4th Grade Math Worksheets PDF. Updated for 2023 - 2024 Smarter Balanced. Choose the Word – Multiple Choice – For these, students will read a sentence and determine the missing word from four choices. You can then utilize the results to create a personalized study plan that is based on your particular area of need. Mathematics. The addition tests include: 1 page of 30 addition equations, numbers 1-3. Your quest to find a comprehensive and detailed program specifically designed for prepping students for the 4th Grade North Carolina EOG (End of Grade) Math exam is over! This program has been carefully developed to enhance your students' preparedness, making sure they are fully equipped to meet Our completely free 4th Grade Math practice tests are the perfect way to brush up your skills. Our fourth grade worksheets library offers over one hundred free pdf 4th grade math worksheets for a variety of math topics including operations, rounding, place value, graphing, factoring, geometry, and word problems. Mastering Grade 4 Math Word Problems The Ultimate Guide to Tackling 4th Grade Math Word Problems $ 26. 1 page of 30 addition equations, numbers 7-10. Start your Arizona's Academic Standards Assessment student assessment practice to brush up on your skills with standards aligned questions. Our worksheets use a variety of high-quality images and some are aligned to Common Core Standards. 2023. Children will solve each of 40 long division problems by finding the quotient in this engaging practice worksheet. May 21, 2020 · This child should try the 3rd grade (or possibly even the 2nd grade) math placement test to ensure they are placed with optimally challenging math material. Unit 1 Get ready for place value. Students need to practice these until they are both fast and accurate. Created by. The total 60 items will be divided into two test sections. They understand the properties. Below are the topics covered in the booklet and the weight distribution for these topics. ) Naming fractions and decimals from a model representation. #25 in Global Rating. 3. THE STATE EDUCATION DEPARTMENT / THE UNIVERSITY OF THE STATE OF NEW YORK / ALBANY, NY 12234. Package Plan. Additionally, you will see how the spiral review keeps old concepts in front of students all year long. Introduction to algebra and the concept of variables. This activity includes fraction word problems and number problems. 50% to 69%. So stay tuned! The Louisiana Educational Assessment Program (LEAP) is a standard test for measuring the academic ability of students in grades 3-8 in the state of Louisiana. Count to tell the number of objects. Give children more practice by allowing them do the quiz. It’s a time when kids need a lot of help to handle the new curriculum as they may tackle some problems while studying. I can draw fraction models. Math Facts Assessment: Flying Through Fourth Grade. 15. Math End Of Term Test For Fourth (4th) Graders - Click here ! Addition & Subtraction Worksheets. O. This is the simpler part of the test, covering whole numbers. Answer Sheet (May be used with the PDF of the test or test item set to record answers. #23 in Global Rating. 140 + 300 B. Take one of our many 4th Grade Math practice tests for a run-through of commonly asked questions. Unit 5 Get ready for fractions. This 4th grade math test is designed to prepare students for their state assessment testing end of curriculum knowledge at the end of the school year. Print our Fourth Grade (Grade 4) Math worksheets and activities, or administer them as online tests. No calculator. This collection is updated frequently and includes some of the best 4th grade math resources available anywhere online. Unit 2 Get ready for addition, subtraction, and estimation. 4th Grade Math - Multi digit multiplication and division, fraction equivalence and mixed equations. Browse by skill zone or use the online generator to create custom worksheets. ) Math Sheets for 4th Grade: PDF Worksheets and Answer Keys. May 1, 2020 · 1. We encourage students to read and think about the problems carefully, by: providing mixed word problem worksheets. Unit 6 Get ready for plane figures. Ashley Hughes Design. New York State Testing Program Grades 3–8 Mathematics. Apr 22, 2024 · What to expect from this 4th grade math test. I can name fraction models. Both versions are included with your Explore printable Math worksheets for 4th Grade Math worksheets for Grade 4 are essential tools for teachers to help their students develop a strong foundation in mathematics. Following is a perfect collection of free exercises and worksheets that would help your student for 4th Grade SBAC Math preparation and practice. Get ready for 4th grade 7 units · 56 skills. Our specially curated worksheets in this section encompass the most frequently asked questions and crucial concepts of the CMAS math test. Following is a perfect collection of free exercises and worksheets that would help your students for 4th Grade Common Core Math preparation and practice. 182 C. Page 22. Section 2 includes problems 15 – 30. We are versatile and can handle any academic task in due time. In this article, we'll share with you a collection of 4th-grade math worksheets with answers that cover all the topics and standards for this grade level. Each question will ask you to select. Mailing Address: P. The test is divided into two sections. Contact Us Main Line: 573-751-4212 Educator Certification: 573-751-0051 Following is a perfect collection of free exercises and worksheets that would help your students for 4th Grade MCAS Math preparation and practice. You will see the easy to follow format and the focus on skills on each page. A family plans to drive 1,584 miles in 4 days. New York State administered the Mathematics Tests in May 2021 and is now making the questions from Session 1 of these tests available for review and use. 3:30. ) Grade 3 : Released Spring 2014: PDF Answer Sheet : Grade 4 : Released Spring 2014: PDF: Grade 5: Released Spring 2014: PDF: Grade 6 The Standards of Learning (SOL) is a crucial standardized test that assesses the abilities of students from grade 3 to 12 in Virginia. They describe and compare simple fractions and decimals. Use your judgment. More 4th Grade Math Test Prep Resources. 5 More. All of the worksheets below were designed by elementary math teachers with fourth grade students in mind. Both versions are included with your purchase. Use the interactive map below to experience Math and English Language Arts practice tests & sample questions for your state assessment practice. Subtraction hundreds and thousands. Teachers and parents are free to download or print these engaging 4th Grade math practice games and worksheets featuring a variety of fantastic teaching materials for K5 Learning offers free worksheets, flashcards and inexpensive workbooks for kids in kindergarten to grade 5. Become a Subscriber to access hundreds of standards aligned worksheets. 2. Start for free now! ent of Education 2010Directions:On the following pages are multiple-choice questions for the Grade 4 Practice Test, a practice opportunity for the Nebraska State Accoun. Courtney Lees. for the assessment exam of Grade 4 Math - Skill Builder + FAST Practice. Welcome to the Math Salamanders Printable Division Worksheets designed for 3rd and 4th graders. Investigate lines, angles, circles, triangles, polygons, perimeter, volume, and the coordinate plane, among other topics with these geometry worksheets. It is perfect for grades 5+ (Or for your ambitious 4th graders!) Content includes mixed numbers, unlike denominators, etc. 482 D. A score of 65% on a 4th grade math placement test means the child will most likely benefit from beginning their math learning with a 4th grade curriculum. Jan 4, 2023 · 4th Grade Diagnostic Math Test. 3rd grade math worksheets: Addition, subtraction, place value, rounding, multiplication, division, fractions, decimals , time & calander, counting money, roman numerals, order Description. 99 Current price is: $14 . The student is probably ready for Math 4 if he/she makes the following scores on the two Math-Drills. Print net activities (3D models) for hands-on student learning. ) Adding fractions and mixed numbers. Apr 19, 2022 · These 4th-grade North Carolina End-of-Grade math worksheets improve the learning process with the help of different levels of questions. Worksheet #1 Worksheet #2 Worksheet #3 Worksheet #4 Worksheet #5 Worksheet #6. The key skills covered in these 30 games includes: reading and writing numbers up to 7 digits; ordering and comparing numbers to 1,000,000; properties of numbers to 1,000,000; rounding to the nearest 10, 50 or 100; fraction place value; Find free printable worksheets and activities for 4th grade math topics, such as place value, fractions, decimals, geometry, and more. $ 14 . SPED Creations by Mariea Drain. com member today! A. Math. com includes over 70,000 free math worksheets that may be used to help students learn math. We aim for these free, […] In this article, we intend to capture your 4 th grader’s interest and love for math with fun and brilliant math activities from Mathskills4kids covering all Grade 4 math topics. Kindergarten Math Tests Know number names and the count sequence. Addition - 3 digit numbers added to 3 digit numbers arranged vertically 1. 80% to 89%. 99. Grade 4 Math Worksheets - 5 Digit Numbers. ) Addition and subtraction within 1,000,000. Then click the add selected questions to a test button before moving to another page. This page offers realistic test practice for a number of state assessments. sitional math assessment is like. 40 × 11 D. Lucy Giles. Open PDF. You will receive incredibly detailed scoring results at the end of your MAP 4th Grade Math practice test to help you identify your strengths and Apr 3, 2022 · Here is one of the most complete sets of math worksheets for the 4th grade LEAP test, which includes an important practice question for the 4th grade LEAP math test. For a sneak peek of how the digital version works, be sure to watch the video preview. There are also worksheets that explore the inverse relationship between multiplication and This is our biggest bundle yet for 4th grade Ilearn reading and math. Each quiz tests the children on a range of math topics from number facts and mental arithmetic to geometry, fraction and measures questions. The end of the year booklet contains 75% multiple choice questions and 25% of items requiring a gridded response or short answers. Worksheets labeled with are accessible to Help Teaching Pro subscribers only. Jefferson City, MO 65101 Map. Here is a comprehensive and perfect collection of FREE printable math worksheets for the 4th Grade SBAC test to help your students review basic math concepts. 99 Original price was: $26. Work the question and find an answer. st they will take in spring 2013. Answer keys included. Plus, we'll give you some tips on how to choose the right worksheets for your child's Example: 2x + 8 = 16. Join K5 to save time, skip ads and access more content. 1 page of 30 addition equations, numbers 4-6. Graphs are included with information on whether each question assesses Mathematics. Learn about measurement using these sheets featuring pictures of coins, clocks, and thermometers. XXII + XVI =. Here are the I Can Statements for the 4th grade fraction skills as well as embedded skills from previous grades (these are based on the Common Core standards so your skills may vary based on the standards your state follows): I can understand and define fractions. Choosing the right PACE practice resource will play an important role in the academic future of 4th-grade students. This product covers 2nd grade standard 2. The student can go on to the next grade level in Math Mammoth. All of the worksheets are available as printable pdf files that include complete answer keys. 24 . 1 page of 56 addition equations, numbers 1-3. For 2019, included in these released materials are at least 75 percent of the test questions that appeared on the 2019 tests (including all constructed-response questions) that counted Check out some possible questions your child may run across on their MAP Growth Math 4th grade subtest! We have a library of resources and over 600 4th grade MAP math test practice questions for you and your child to prepare with, so make sure to become a TestingMom. ) Endorsing learning and practice, our printable 4th grade math worksheets with answer keys amazingly fit into your curriculum. * Note: the worksheet variation number is not printed with the worksheet on purpose so others cannot simply look up the answers. Grade 4 math practice, questions, tests, teacher assignments, teacher worksheets, printable worksheets, and other activities for USA School Math, Olympiad, SAT Subject Test: Math Level 1, Kangaroo, SASMO, and SEAMO. A. This practice test’s realistic format and high-quality practice questions can help your student succeed on the 4th Grade MAP Math test. Below is an excellent compilation of complimentary exercises and worksheets designed to assist your student in preparing and practicing for the 4th Grade SBAC Math exam. Rely on us. Become a Member. Unit 3 Get ready for multiplication. The student can possibly be placed to the grade level of the test. Answers sorted by domain. Award winning educational materials designed to help kids succeed. 40 + 500 C. 4th Grade Math Test Prep Practice Test Printable and Google Forms Spiral Review - Set #2 - Improve math scores on standardized tests using this practice test for Grade 4. For all questions: Read each question car. 40 ×100 + ( 30 ) 25. Become a member to access additional content and skip ads. A. No login required. Only Session 1 was required in 2021. You can create printable tests and worksheets from these Grade 4 Decimals questions! Select one or more questions using the checkboxes above each question. The 5th grade pre-assessments targets these skills: 1. Prints 6 pages. Don’t let boring assignments ruin your plans. In this math exercise, students will demonstrate their multiplication and division facts fluency. Math teachers teach students how to use scratchpad and go about the problem in the best way. There is also a FREE 4th Grade MAP Math Practice Test . n answer from among four choices. Our completely free MAP 4th Grade Math practice tests are the perfect way to brush up your skills. See up to a 90% Improvement in Math Scores Within 3 Months. For each grade level, the vocabulary words are broken down by domains. Box 480 Jefferson City, MO 65102-0480. Other. The games are PowerPoint, but can be uploaded to Google Classroom. Grading on question 1 (the multiplication tables grid): There are 169 empty squares to fill in the table, and the comp. There is also a FREE 4th Grade Common Core Math Practice Test Hope you enjoy it! Write Roman numerals (1-399) 253 =. 1st Grade Math Tests Understand place value. It contains 44 problems on all Math topics covered in Grade 4. Following is a perfect collection of free exercises and worksheets that would help your students for 4th Grade MAP Math preparation and practice. On this page we have a selection of division fact worksheets to help your child practice their division facts relating to the multiplication table up to 10x10. The family will drive the same number of miles each day. "Tell the time" and "Draw the hands". ggestion for grading is. Start here with this free packet on subtraction with regrouping. Sep 13, 2020 · Welcome to our FREE 4th Grade SBAC Math practice test, with answer key and answer explanations. g. The student can probably go on to the next grade level in Math Mammoth, but may need help in filling in gaps. 4th Grade Math Worksheets, Study Guides and Vocabulary Sets. Take one of our many MAP 4th Grade Math practice tests for a run-through of commonly asked questions. ) Advanced multiplication and division. You will receive incredibly detailed scoring results at the end of your 4th Grade Math practice test to help you identify your strengths and weaknesses May 10, 2022 · Here is a comprehensive collection of FREE printable math worksheets for 4th Grade PACE to help your students review basic math concepts. Hire an expert in the required discipline, relax, and wait for the results to arrive. elow. Print only one number or symbol in each box. Math for 4th Graders Browse 4th grade math learning resources, perfectly aligned to the 4th grade math curriculum. Do not leave a blank box in the middle of an answer. The tests are printable, but also written in Self-Grading Google Forms. Download Workbook. These worksheets are available to members only. 6 Printable Addition Tests. Sample Grade 4 Roman numerals worksheet. Interactive Worksheet. Graphs are included for data tracking. A great way to revise topics, or use as a weekly math test or math quiz! . Click on each topic and download the math worksheet for 4th Grade MCAS. Following is a perfect collection of free exercises and worksheets that would help your students for 4th Grade OST Math preparation and practice. Mathematics Released Test or Test Item Set; Mathematics Grade Level/Course PDF of the Released Test or Test Item Set. Released Questions. 99 . Students can utilise additional paper when completing the task. Here you will find a range of printable mental math 4th grade quizzes for your child to enjoy. These word problem worksheets place 4th grade math concepts into real world problems that students can relate to. There is also a FREE 4th Grade MCAS Math Practice Test Hope you enjoy it! K5 Learning offers free worksheets, flashcards and inexpensive workbooks for kids in kindergarten to grade 5. These worksheets cover a wide range of topics, including multiplication, division, fractions, decimals, and geometry, tailored to the specific needs and abilities of The Colorado Measures of Academic Success (CMAS) evaluates student proficiency in grades 3-8 in Colorado. You're saving 20% by buying all 33 of my best-selling Self-grading 4th-Grade Math Assessments in 1 bundle! (That's 330 questions!) Students simply take these digital multiple-choice quizzes and you receive immediate data org Created by. Includes technology-enhanced questions aligned to learning standards. It includes both practice tests and games. NBT. Write Roman numerals (1-1,000) 683 =. This free product contains two activities for students to practice using the associative and commutative properties of addition and multiplication. Time Worksheets. Count how many of the answers the student gets right, divide that by 10, and ro. Jan 22, 2021 · The following collection gives you access to over 100 of the best free 4th-grade math worksheets for multiple topics and ability levels. 4th grade marks a point in your child’s life where they’re ready to learn advanced math concepts like decimal numbers, factors, complex operations, and measurement. Support your child’s math learning at home by downloading or printing our free 4th grade math worksheets, based on concepts from the common core standards for fourth grade. Division Review #1. This practice test’s realistic format and high-quality practice questions can help your student succeed on the 4th Grade SBAC Math test. 4th grade. This is perfect for daily skill review or homework. A great way to revise topics, or use as a weekly math test or math quiz! Each Common Core: 4th Grade Math problem is tagged down to the core, underlying concept that is being tested. , interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Identify and describe shapes. Multiplication and Division Review. Science (2876) Social Studies (2557) Technology (2) Fourth Grade (Grade 4) Decimals Questions. Eliminates test anxiety and boosts student confidence with access to the realistic Assessment testing environment. Print our Fourth Grade (Grade 4) worksheets and activities, or administer them as online tests. It could also serve as a placement test for fifth (5th) graders. Worksheet 1. Click on each topic and download the math worksheet for 4th Grade Common Core. You'll find worksheets for number sense, operations, algebra, geometry, measurement, data, and more. A Use the four operations with whole numbers to solve problems. Section 1 includes problems 1 – 15. Lumos FREE Downloadable and Printable Smarter Balanced Worksheets for Mathematics and English Language Arts offer comprehensive review of standards. If you want the answers, either bookmark the worksheet or print the answers straight away. The following collection shares over 100 free and easy to print math sheets for 4th grade on topics including fractions, place value, unit conversion, multiplication, division, and more! Plus every worksheet includes a free answer key. Our math worksheets are available on a broad range of topics including number sense, arithmetic, pre-algebra, geometry, measurement, money concepts and much more. This is an end of term test for children ending Grade 4. Also! Hundreds of grade-specific TCAP practice questions in Math and English language arts (ELA) literacy are designed to familiarize students with the learning standards and new item types included in the TCAP assessments of 2023 - 2024. Start Zero $ 7-Day Trial. Which equation could be used to find the number of miles the family will drive each day? A 1,584 + 4 = 1,588 B 1,584 × 4 = 6,336 C 1,584 ÷ 4 = 396 D 1,584 – 4 = 1,580 81081 25 Students practice their multiplication facts from 2 to 12. Unit 7 Get ready for area and perimeter. You 6700 dollars in your pocket. The Common Core: 4th Grade Math diagnostic test results highlight how you performed on each area of the test. Browse Printable 4th Grade Math Workbooks. eted table is worth 17 points. Find here a complete and ideal set of free, printable math worksheets for the 4th Grade SBAC test, aimed at helping your students review essential math concepts. This comprehensive test can be taken on paper (print and go) or online using self-grading google forms. Thinkster is the Only Math Tutoring Program That GUARANTEES Results. Practicing thoroughly is key to excelling in any examination, including the CMAS math test. The Practice Test may be used at home or at school for students to become familiar with the LEAP t. Not only does the test closely match what students will see on the real MAP, but it also comes with detailed Here are 4 FREE pages of 2 digit addition and subtraction with regrouping to help practice this skill. Just scroll through the list of topics, select sTest Administrator InstructionsThis document contains a Practice Test that shows what each part, or session, of an actual grade 4 tra. Two-Minute Timed Test: Multiply and Divide #1. Operations and Algebraic Thinking. 5. The quiz lasts for 44 minutes. At the end of the practice session This large collection of online math tests provides students, parents, and teachers with a variety of assessments for different grades and learning needs. Our 4th Grade Math Games e-booklet contains our entire selection of printable math games for 4th graders. It can help students feel more relax. Problem solving skills. Not only does the test closely match what students will see on the real SBAC, but it also comes with detailed The Grade 4 Mathematics test will consist of 50 operational items and 10 field-test items, written at a reading level about one grade level below a Grade 4 audience, and includes four responses from which to choose: the correct answer and three distractors. Jul 4, 2021 · This free resource includes a beginning of the year math pre-test, along with a matching end of the year post-test to track students growth. yi cs jh ue eh yj ir kv nm uv