Topic 8 Vocab

Front

Commutative Property of Addition:

Back

Numbers can be added in any order; the sum remains the same.

Front

Associative Property of Addition

Back

Addends can be regrouped; sum remains the same.

Front

Inverse operations?

Back

Two operations that undo each other.

Front

Identity property of addition

Back

Sum of any number and zero is that number.

Front

Compatible numbers?

Back

Numbers that are easy to add, subtract, multiply, or divide mentally.

Front

Shaded sums in the addition table show a property of addition.

Back

Commutative property: Changing the order of addends does not change the sum.

Front

Shaded sums in the addition table represent which property?

Back

Identity property of addition: each sum equals one addend; zero added to a number is that number.

Front

58 + (23 + 46) = 23 + (46 + 58) shows:

Back

communitive property of addition

Front

45 + (36 + 25) = (45 + 36) + 25

Back

associative property of addition

Front

45 + 36 = 36 + 45 shows:

Back

communitive property of addition