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MultiplicationProperties.pdf
Propertiesofmultiplication1.mp4
PropertiesofMultiplication.wmv

Creator: Narrator: Sydney and Mr. Cunningham
School/Organization: W.E. Striplin Elementary School
Gadsden City School System
Gadsden, Alabama
Overview:
There are four properties involving multiplication that will help make problems easier to solve. They are the commutative, associative, multiplicative identity and distributive properties.
Length: 01:39
Content Areas: Math
Alabama Course of Study Alignments and/or Professional Development Standard Alignments:
MA2015 (3)  5. Apply properties of operations as strategies to multiply and divide. (Students need not use formal terms for these properties.) [3OA5] Examples: If 6 x 4 = 24 is known, then 4 x 6 = 24 is also known. (Commutative property of multiplication) 3 x 5 x 2 can be found by 3 x 5 = 15, then 15 x 2 = 30, or by 5 x 2 = 10, then 3 x 10 = 30. (Associative property of multiplication) Knowing that 8 x 5 = 40 and 8 x 2 = 16, one can find 8 x 7 as 8 x (5 + 2) = (8 x 5) + (8 x 2) = 40 + 16 = 56. (Distributive property)  
National/Other Standards: Grades 3–5 Expectations: In grades 3–5 all students should–
 understand the placevalue structure of the baseten number system and be able to represent and compare whole numbers and decimals;
 recognize equivalent representations for the same number and generate them by decomposing and composing numbers.
