Multiplying by 10's;100's;1000's
30 x 6
180
2 x 42 =
3 X 421 =
1,263
7 x 1000 =
7,000
Estimate:
6 x 18 =
120
20 x 4 =
80
65 x 9 =
585
8 X 125
1000
5 x 1,234 =
6,170
Estimate:
6 x 75 =
480
3,000 x 7 =
21,000
9 x 63 =
567
9 X 861=
7,749
6 x 3,236
19,578
Estimate:
7 x 849 =
5,600
50 x 9,000 =
450,000
98 x 8 =
784
8 X 888 =
7,104
5 x 2,525 =
16,625
Estimate:
7 x 2,412 =
7,000
600 x 900 =
360,000
91 x 4 =
364
8 X 668 =
5,344
4 x 9,999 =
39,996
Estimate:
5 x 8,505 =
45,000