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Grade 4

CCSS Math Standard: 4.OA.2

Use the four operations with whole numbers to solve problems. Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.

  • Create Your Own Operation

    The commutative and associative properties are a whole lot more interesting when you apply them to a mathematical operation that you created!