What property is used?
(5 + 3 )+7 = 5 + (3 +7)
associative property of addition
name the property being used 0 x 9 = 0
What is the identity property of multiplication
give an example of the commutative property of multiplication
teacher check
Easy points:
a0 =?
a0 =1
Name the property that makes this true
7 x 4 = 4 x 7 (simplify)
the commutative property of multiplication 28 =28
What does the commutative property of addition say?
a + b = b + a
name the property, find the missing number, and SOLVE (3 x 2) x 5 = 3 x (___ x 5)
What is the associative property 2 is missing number 30 = 30
What is the main word that should come to mind when thinking of the associative property?
What is GROUP or GROUPING
What does the associative property of addition say?
a + (b + c) = (a + b) + c
show 2 ways to group and find the product 4 x 2 x 3
What is (4 x 2) x 3 = 24 and 4 x (2 x 3) = 24
5 ( 4 + 3) = 5 (4) + 5 (3)
What property makes this true?
Distributive Property of Multiplication over addition