SOURCE: Arizona Department of Education, Arizona Mathematics Standards 3rd Grade, Sample Math Assessment Test Question

Introduction to AZ Math Standard

Arizona Mathematics Standards 3rd Grade

Math Lesson Curriculum Aligned to AZ Standard for Mathematical Practice 3.OA.A.4

Math Operation and Algebraic Thinking

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers For example, determine the unknown number that makes the equation true in the equations 695 - 427 = ☐ written mathematically as 695 - 427 = x

and 3.OA.D.8 Solve two-step word problems using the four operations. Represent these problems using equations with letter "x" or square box standing for the unknown quantity. Utilize understanding of the Order of Operations when there are no parentheses

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