properties
? x ? = 0
Zero property
10 x 2
100 x 2
1000 x 2
20
200
2,000
32 + 68 + 29 + 70
200
solve by regrouping
72 x 3
216
232 x 10
2,320
? x ? = 7,349
Identity Property
40 x 20
80
76 x 42
3,200 or 2,800
solve using distributive property
4 x 235
940
40,032 x 2
80,064
6 x ? = 12 x ?
commutative property
200 x 5
1,000
37 + 39 + 83 + 42 + 79
280
solve by regrouping
542 x 64
34,688
204 x 53
10,812
17 X (34 + ? ) = (? X ? ) + (17 + 4 )
Distributive Property
700 x 2
1,400
$14.99 X 32
450
solve using box method
614 x 28
17,192
322 x50
16,100
(8 x ?) x 14 = ? x (6 x ?)
associative property
6,000 x 400
2,400,000
11 x 28 x 9 x 32
90,000
solve using box method
545 x 132
71,940
720x203
146,160