Applying properties of operations to numbers within 20

If 15 + 3 = 18 then 18 - 3 =

• 18

• 17

• 16

• 15

7+7+7=10+9+4

• True

• False

Which property does this represent:

(5 + 7) + 6 = 5 + (7 + 6)

• Associative Property of Addition

• Associative Property of Multiplication

• Commutative Property of Addition

• Distributive Property

Which is an example of Associative(Friendship) Property

• 9 +4 = 4 + 9

• 7 +(3+5)= (7 + 3) + 5

• 1 + 0= 1

• (4)(12)= 48

Name the following property: a+0=a

• Associative of addition

• Commutative of addition

• Identity of addition

• Zero Property of Multiplication

• Associative of multiplication

What does the associative property mean?

• You can group the numbers in any order and get the same answer

• You can change the order of the number and get the same answer.

Is (5 - 2) the same as (4 - 1)?

• yes

• no

Which property of addition says that you can add numbers in any order and get the same sum?

• The associative property
• The commutative property
• The distributive property
• The switcharoo property

Identify the property

a + b = b + a

• Identity of addtion

• commutative of addition

• associative of addition

• zero

Use the identity property of addition to generate an expression with 12 as an addend and the sum.

NO SPACES!