90 + 10
100
3 x 6
18
(3 x 3) x 1 = 3 x (3 x 1)
Associative
30 + 15
45
4 x 3
12
23 x 0
Zero
67 + 3
70
2 x 9
1 x 478468
Identity
6 + 7
13
40 x 2
80
23 + 7
30
400 x 1
400
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