Properties of Addition

If 4+5=9, then 5+4= ?

• 4

• 5

• 9

If 21+24=45, then _+21=45

• 21

• 24

• 45

Commutative property of Addition means that you can add numbers in any order the answer will be the same

• True

• False

Fill in the blanks

17 + _ = 5 + 17

• 17

• 5

• 21

55+0=__

• 56

• 0

• 55

Additive IdentityProperty means that when we add 0 to any number, the answer is NOT the same number

• True

• False

0+__=91

• 0

• 91

• 90

(3+__) + 4 = (4+3) +7

• 3

• 4

• 7

When we add three or more numbers in any order the answer is the same. This is the Associative Property of Addition

• True

• False

Identify this Property of Addition: 3+0=3

• Commutative Property of Addition

• Additive Identity Property of Addition

• Associative Property of Addition