Apply properties of operations as strategies to multiply and divide.
Operations and Algebraic Thinking
Understand properties of multiplication and the relationship between multiplication and division.
Apply properties of operations as strategies to multiply and divide.
Operations and Algebraic Thinking
Understand properties of multiplication and the relationship between multiplication and division.
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Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known. (Commutative property of multiplication.) 3 × 5 × 2 can be found by 3 × 5 = 15, then 15 × 2 = 30, or by 5 × 2 = 10, then 3 × 10 = 30. (Associative property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive property.)
Apply the commutative property of multiplication (not identification or definition of the property).
Apply the associative property of multiplication (not identification or definition of the property).
Apply properties of operations as strategies to multiply and divide.
Apply properties of operations as strategies to multiply and divide.
Apply properties of operations as strategies to multiply and divide.