(61 x 15) x 12= 61 x ( ___ x 12)
14
15
12
10
5 x 6 x 7 =
210
200
180
202
________ x 666 = 666
6
1
0
666
112 x 102
11420
11242
11324
11424
Multiply 15 x 13
190
193
195
198
8 x 9 x 10 =
72
702
720
80
How many articles are there in 12 dozens?
144
24
140
(20 x 30) x ___ = 20 x (30 x 60)
40
60
50
12x 1000 =
120
1200
12000
5721 x 2345 = 2345 x _______
2346
5722
5721
2349
