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8 Cards in this Set
 Front
 Back
Commutative Property

When adding, the order of the numbers can change but the sum is the same.
EXAMPLE: 3+5=8 or 5+3=8 

Pattern

a series of numbers or figures that follow a rule.


Addend

A number to be added.


Regroup

To name a number in a different way.


Sum

The answer in addition.


Estimate

To find an answer close to the exact answer.


Identity Property

When one of the 2 addends is zero, the sum is the other addend.
Example: 0+9=9 

Associative Property

When adding, the grouping of the numbers can change but the sum is the same.
EXAMPLE: (5+5)+1= 11 5+(5+1)=11 