Addition Postulates

The ___________________of Addition states that you can change the order of the addends and still get the same sum.

• Commutative Property

• Associative Property

• Identity Property

• Mental Math

Tags

CCSS.1.OA.B.3

What property of Addition is 2 + (4 + 3) =

• Commutative

• Associative

• Identity

• I don't know

Tags

CCSS.1.OA.B.3

What property of Addition is

5+7

7+5

• Associative

• Identity

• Commutative

Tags

CCSS.1.OA.B.3

Is 5 + 15 = 15 + 5 ?

• Yes

• No

• May be

• Not determined

Tags

CCSS.1.OA.B.3

Pick out another addition fact for 3+6=9

• 3+2=5

• 6+3=9

• 4+2=6

• 4+5=9

Tags

CCSS.2.OA.B.2

CCSS.1.OA.C.6

If you have 9 pieces of candy and someone gives you 10 more, how many pieces of candy do you have?

• 18

• 19

• 20

• 21

Tags

CCSS.2.NBT.B.6

23 + 12 =12 + 23

• True

• False

Tags

CCSS.1.OA.B.3

In addition if we change the order of numbers, the sum will remain ________

• same

• diiferent

Tags

CCSS.1.OA.B.3

Devin modeled an addition property with the equation below.

Which is the missing number? 7 + 15 = 15 + ?

• 15

• 37

• 7

• not here

Tags

CCSS.1.OA.B.3

What is the result of adding the number right before 10 to the number right after 8?

• 19

• 18

• 17

• 20

Tags

CCSS.1.OA.C.6