Commutative Property
Addition and Subtraction
Fact Family
What's Missing?
Associative Property
100
What is the related number sentence:
2 + 6 = 8
6 + 2 = 8
100
10 + 6 =
16
100
What is the related addition sentence?
2 + 3 = 5
100
What's missing?
5 + ____ = 10
5
100
2 + 3 + 3 =
8
200
What is the related number sentence to this:
10 + 9 = 19
9 + 10 = 19
200
15 - 10 =
5
200
What are the two addition sentences you can make with these numbers?
8 + 7 = 15
7 + 8 = 15
200
What is missing?
8
200
8 + 3 + 2 =
13
300
True or False:
This is an example of the commutative property:
5 + 7 = 7 + 5
True
300
___ + 6 = 15
What is missing?
9
300
What are the two subtraction sentences you can create with these numbers?
15 - 8 = 7
15 - 7 = 8
300
What is missing?
7
300
10 + 5 + 5 =
20
400
True or False:
This is an example of the commutative property:
11 + 6 = 17
17 - 6 = 11
False
400
19 - 10 = ___
19 - ___ = 10
What is missing?
9
400
What are the 4 related number sentences that can be created with these numbers?
7 + 1 = 8
1 + 7 = 8
8 - 1 = 7
8 - 7 =1
400
What's missing?
6 + 7 + __ = 15
2
400
11 + 6 + 3 =
20
500
What is the meaning of the commutative property of addition?
It means that the numbers in a addition sentence (addens) can be switched and the answer (sum) stays the same.
500
Billy likes to collect Beyblades. He has 5. He gets some for his birthday.He now has 18. How many did he get for his birthday?
13
500
Create your own model of a fact family. Tell us three numbers that you can use. Then all 4 related number sentences.
Various answers.
500
What are the number sentences missing?
4 + 15 =19
19 - 4 = 15
19 - 15 = 4
500
9 + 9 + 4 =
22