Properties of Numbers
Cluster
C6
Vocabulary
Identity- leaves the value of other numbers unchanged
Objective
To identify properties of addition and multiplication
To use the properties to solve problems
Lesson
Commutative Properties of Addition and Multipcation
Changing the order of the values you are adding or multiplying does not change the sum or product.
Ex. 4 + 6 = 6 + 4
Ex. 5 * 9 = 9 * 5
Associtave Properties od Addition and Multiplication
Changing the grouping values you are adding or multiplying does not change the sum or product
Ex. (2 + 7) + 3 = 2 + (7 + 3)
Ex. (4 * 5) * 9 = 4 * (5 * 9)
Identity Properties of Addition and Multiplication
The sum of any number and zero is the original number
12 + 0 = 12
The Product of any number and 1 is the original number
10 * 1 = 10
