Multiply by Tens
10 x 50
500
101 =
10
2.1 x 3 =
6.3
234 x 12 =
2808
1/3 x 1/3 =
1/9
20 x 70
1400
104 =
10,000
4.1 x 4 =
16.4
324 x 11 =
3564
2/5 x 3/4
6/20 o 3/10
700 x 30
21,000
3 x 103 =
3,000
23.65 x 5 =
118.25
622 x 31 =
19,282
2/9 x 6/9
12/81 o 4/27
4000 x 6000
24,000,000
9 x 106 =
9,000,000
23.84 x 0.1 =
2.384
421 x 31 =
13,051
2/11 x 3/5
6/55
800 x 500
400,000
21 x 105 =
2,100,000
34.7 x 2.4 =
83.28
721 x 32 =
23,072
7/21 x 9/30
63/630 o 1/10