Washington Math Standards - 4th Grade

Want unlimited math worksheets? Learn more about our online math practice software.
View the Washington Math Standards at other levels.

4.1. Core Content: Multi-digit multiplication
4.1.A Quickly recall multiplication facts through 10 X 10 and the related division facts. (Fast Multiplication , Fast Multiplication Reverse , Multiplication Facts Strategies , Fast Division )
4.1.B Identify factors and multiples of a number. (Factoring )
4.1.C Represent multiplication of a two-digit number by a two-digit number with place value models.
4.1.D Multiply by 10, 100, and 1,000. (Multiply By Multiples Of 10 )
4.1.E Compare the values represented by digits in whole numbers using place value. (Place Value )
4.1.F Fluently and accurately multiply up to a three-digit number by one- and two-digit numbers using the standard multiplication algorithm. (Multiplication By One Digit , Long Multiplication )
4.1.G Mentally multiply two-digit numbers by numbers through 10 and by multiples of 10. (Multiply By Multiples Of 10 )
4.1.H Estimate products to approximate solutions to problems and determine reasonableness of answers. (Estimated Multiplication , Estimated Division , Estimated Multiply Divide Word Problems )
4.1.I Solve single- and multi-step word problems involving multi-digit multiplication and verify the solutions.
4.1.J Solve single- and multi-step word problems involving division and verify the solutions. (Word Problems With Remainders )

4.2. Core Content: Fractions, decimals, and mixed numbers
4.2.A Represent decimals through hundredths with place value models, fraction equivalents, and the number line. (Decimal Place Value , Compare Decimals )
4.2.B Read, write, compare, and order decimals through hundredths. (Decimal Place Value , Order Decimals , Compare Decimals )
4.2.C Convert a mixed number to a fraction and vice versa, and visually represent the number. (Fraction Simplification )
4.2.D Convert a decimal to a fraction and vice versa, and visually represent the number. (Positive Number Line , Fractions to Decimals , Decimals To Fractions )
4.2.E Compare and order decimals and fractions (including mixed numbers) on the number line, in lists, and with the symbols <, >, or =. (Order Decimals , Compare Mixed Values , Fraction Comparison , Compare Decimals , Basic Fraction Comparison )
4.2.F Write a fraction equivalent to a given fraction. (Fraction Simplification )
4.2.G Simplify fractions using common factors. (Fraction Simplification )
4.2.H Round fractions and decimals to the nearest whole number. (Decimal Rounding to .01 )
4.2.I Solve single- and multi-step word problems involving comparison of decimals and fractions (including mixed numbers), and verify the solutions.

4.3. Core Content: Concept of area
4.3.A Determine congruence of two-dimensional figures. (Congruent And Similar Triangles )
4.3.B Determine the approximate area of a figure using square units.
4.3.C Determine the perimeter and area of a rectangle using formulas, and explain why the formulas work.
4.3.D Determine the areas of figures that can be broken down into rectangles. (Perimeter and Area of Composite Figures )
4.3.E Demonstrate that rectangles with the same area can have different perimeters, and that rectangles with the same perimeter can have different areas. (Compare Rectangle Area and Perimeter )
4.3.F Solve single- and multi-step word problems involving perimeters and areas of rectangles and verify the solutions. (Perimeter and Area Word Problems )

4.4. Additional Key Content
4.4.A Represent an unknown quantity in simple expressions, equations, and inequalities using letters, boxes, and other symbols. (Algebraic Sentences )
4.4.B Solve single- and multi-step problems involving familiar unit conversions, including time, within either the U.S. customary or metric system. (Time Intervals , Distance Conversion , Time Conversion , Volume Conversion , Weight Conversion )
4.4.C Estimate and determine elapsed time using a calendar, a digital clock, and an analog clock. (Time Intervals )
4.4.D Graph and identify points in the first quadrant of the coordinate plane using ordered pairs.
4.4.E Determine the median, mode, and range of a set of data and describe what each measure indicates about the data.
4.4.F Describe and compare the likelihood of events.
4.4.G Determine a simple probability from a context that includes a picture. (Probability )
4.4.H Display the results of probability experiments and interpret the results.

4.5. Core Processes: Reasoning, problem solving, and communication (Perimeter and Area Word Problems )
4.5.A Determine the question(s) to be answered given a problem situation.
4.5.B Identify information that is given in a problem and decide whether it is essential or extraneous to the solution of the problem.
4.5.C Identify missing information that is needed to solve a problem.
4.5.D Determine whether a problem to be solved is similar to previously solved problems, and identify possible strategies for solving the problem.
4.5.E Select and use one or more appropriate strategies to solve a problem and explain why that strategy was chosen.
4.5.F Represent a problem situation using words, numbers, pictures, physical objects, or symbols.
4.5.G Explain why a specific problem-solving strategy or procedure was used to determine a solution.
4.5.H Analyze and evaluate whether a solution is reasonable, is mathematically correct, and answers the question.
4.5.I Summarize mathematical information, draw conclusions, and explain reasoning.
4.5.J Make and test conjectures based on data (or information) collected from explorations and experiments.

Learn more about our online math practice software.