Multiply by 10, 100, 1000
Multiply 1 digit by 2 digit
Estimate
Multiply 1 digit by 3 digits
Multiply by Breaking Apart or Boxes
100
8 x 60 =
480
100
13 x 6 =
78
100
Estimate 8 x 76
8 x 80 = 640
100
493 x 3 =
1,479
100
37 x 4=
30 x 4= 120 7 x 4 = 28 Answer 148
200
6 x 500 =
3,000
200
63 x 7 =
441
200
Estimate 96 x 5=
100 x 5 = 500
200
678 x 6 =
4,068
200
23 x 8 =
20 x 8 = 160 3 x 8 = 24 Answer 184
300
700 x 4 =
2,800
300
87 x 5 =
435
300
Estimate 707 x 4 =
700 x 4 = 2,800
300
109 x 6 =
654
300
41 x 9 =
40 x 9 = 360 1 x 9 = 9 Answer 369
400
80 x 8 =
640
400
72 x 2 =
144
400
Estimate 42 x 9 =
40 x 9 = 360
400
148 x 3 =
444
400
56 x 4 =
50 x 4 = 200 6 x 4 = 24 Answer 224
500
7,000 x 7 =
49,000
500
61 x 9 =
549
500
Estimate 719 x 9 =
700 x 9 = 6,300
500
299 x 5 =
1,495
500
79 x 8 =
70 x 8 = 560 9 x 8 = 72 Answer = 632
M
e
n
u