Addition Properties
Patterns
How Many More
Add Mentally
More Adding :)
100
What property is shown in the equation: 2 + 0 = 2
Identity
100
Finish the next three blanks in the pattern: X X O X X O X ___ , ___ , ___
X O X
100
What is one more than 52?
53
100
Break apart the addends to add mentally? 79 --> _____ + _____ +82 --> _____ + _____
79 --> 70 + 9 +82 --> 80 + 2 161 = 150 + 11
100
Make a ten to add mentally: 18 + 24
18 + 2 = 20 24 - 2 = 22 20 + 22 = 42
200
What property is shown below: 2 + 3 = 3 + 2
Commutative
200
Count by 2's up to 20.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
200
What is ten more than 76?
86
200
Break apart the addends to add mentally? 64 --> _____ + _____ +33 --> _____ + _____
64 --> 60 + 4 +33 --> 30 + 3 97 = 90 + 7
200
Make a ten to add mentally: 59 + 33
59 + 1 = 60 33 - 1 = 32 60 + 32 = 92
300
What property is shown below: (7 + 3) + 8 = 7 + (3 + 8)
Associative
300
What are the odd numbers up to 20?
1, 3, 5, 7, 9, 11, 13, 15, 17, 19
300
What is one hundred more than 542?
642
300
Break apart the addends to add mentally? 45 --> _____ + _____ +21 --> _____ + _____
45 --> 40 + 5 +21 --> 20 + 1 66 = 60 + 6
300
Make a ten to add mentally: 98 + 36
98 + 2 = 100 36 - 2 = 34 100 + 34 = 134
400
Why do we need parenthesis when adding using the associative property?
The parenthesis tell us to add those numbers first.
400
What are the even numbers up to 20?
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
400
What is ten more than 99?
109
400
Break apart the addends to add mentally? 164 --> _____ + _____ + _____ +233 --> _____ + _____ + _____
164 --> 100 + 60 + 4 +233 --> 200 + 30 + 3 397 = 300 + 90 + 7
400
Make a ten to add mentally: 334 + 128
128 + 2 = 130 334 - 2 = 332 130 + 332 = 462
500
Write three equations to show the commutative, associative, and identity property.
Answers will vary.
500
What is the pattern in the number sequence? 2, 5, 8, 11, 14
add 3
500
What is one hundred more than 987?
1,087
500
Break apart the addends to add mentally? 681 --> _____ + _____ + _____ +754 --> _____ + _____ + _____
681 --> 600 + 80 + 1 +754 --> 700 + 50 + 4 1,435 = 1300 + 130 + 5
500
Make a ten to add mentally: 598 + 654
598 + 2 = 600 654 - 2 = 652 600 + 652 = 1,252
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