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Apply properties of operations as strategies to multiply and divide

Page history last edited by Nick Pyzik 6 years, 5 months ago

LEARN Learn about properties of operations as strategies to multiply and divide.
Understand the commutative property by naming arrays	Understand the commutative property of multiplication in word problems	Solve multiplication problems: using distributive property	Understand multiplication and division relationships	Order of factors in multiplication

PRACTICE Practice using properties of operations as strategies to multiply and divide.
Multiply to find the area of rectangles and explore the commutative property	Practice switching factor order	Solve multiplication equations using the associative property

STUDENT SELF-ASSESSMENT CLICK HERE TO DOWNLOAD THE STUDENT SELF-ASSESSMENT CCSS.MATH.CONTENT.3.OA.B.5 Apply properties of operations as strategies to multiply and divide. 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.)

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