Addition Properties
Identify the Property:
4 + 5 = 5 + 4
Commutative
29 + 0 = ___
0 + 29 = ___
What are the next 2 numbers if you continue to add by 3?
9, 12, 15, ___, ___
18 & 21
Solve using the Expanded From Method:
28 + 67
20 + 8
60 + 7
= 95
Solve using the Make a Ten Method:
72 + 49
71 + 50 = 121
Identify the Property:
8 + 0 = 8
Identity
Solve:
(6 + 9) + 8 = ___
23
What are the next 2 numbers if you continue to add by 7?
7, 14, 21, ___, ___
28 & 35
Solve using the Expanded Form Method:
432 + 231
400 + 30 + 2
200 + 30 + 1
= 663
Solve using the Make a Ten Method:
136 + 128
134 + 130 = 264
Identify the Property:
(6 + 8) + 6 = 20
Associative
Solve:
13 + 16 = ___
16 + 13 = ___
29
Identify the addition pattern:
510, 520, 530, 540
Add by 10 (+10)
Solve using the Expanded Form method:
925 + 67
900 + 20 + 5
60 + 7
= 992
Solve using the Make a Ten method:
539 + 481
540 + 480 = 1,020
Identify the Property:
5 + 6 = 11
6 + 5 = 11
Commutative
Find the missing number:
17 + ___ = 25
___ + 17 = 25
Identify the addition pattern:
490, 590, 690, 790
Add by 100 (+100)
Solve using the Expanded Form Method:
465 + 394
400 + 60 + 5
300 + 90 + 4
= 859
Solve using the Make a Ten Method
635 + 788
633 + 790 = 1,423
Identify the Property:
(4 + 6) + 7 = 4 + (6 + 7)
Associative
Find the missing number:
(5 + 4) + 9 = 5 + (___ + 9)
4
Identify the addition pattern:
1,347; 2,347; 3,347; 4,347
Add by 1,000 (+1,000)
Solve using the Expanded Form method:
1,238 + 2,361
1,000 + 200 + 30 + 8
2,000 + 300 + 60 + 1
= 3,599
Solve using the Make a Ten Method:
1,237 + 1,388
1,235 + 1,390 = 1,625