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8 Cards in this Set

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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