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Third Grade
Third Grade Math
Addition and subtraction
Properties of addition
Associative property
Time left :
ASSOCIATIVE PROPERTY
1
________________ = (27 + 29) + 25 = 81
29 + (27 + 25)
27 + (29 + 25)
25 + (29 + 27)
2
________________ = (32 + 34) + 28 = 94
34 + (32 + 28)
28 + (34 + 32)
32 + (34 + 28)
3
22 + (29 + 38) = ________________ = 89
(22 + 29) + 38
(38 + 29) + 22
(22 + 38) + 29
4
________________ = (30 + 18) + 19 = 67
19 + (18 + 30)
30 + (18 + 19)
18 + (30 + 19)
5
70 + (30 + 20) = ________________ = 120
(70 + 30) + 20
(20 + 30) + 70
(70 + 20) + 30
6
________________ = (24 + 27) + 32 = 83
32 + (27 + 24)
27 + (24 + 32)
24 + (27 + 32)
7
7 + (3 + 9) = (7 + 3) + 9 = _______
19
18
20
8
5 + (6 + 3) = ________________ = 14
(5 + 3) + 6
(5 + 6) + 3
(3 + 6) + 5
9
2 + (1 + 2) = (2 + 1) + 2 = __________
6
5
4
10
3 + (8 + 3) = (3 + 8) + 3 = ________________
13
15
14
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