Tack on 0's
Make Estimates
2 digit x 1 digit
3 digit x 1 digit
2 digit x 2 digit
100
30 x 8
What is 240
100
Estimate 12 x 9
What is 10 x 9 = 90
100
15 x 7
What is 10 x 7 = 70 5 x 7 = 35 15 x 7 = 105
100
300 x 7
What is 2100
100
40 x 80
What is 3200
200
600 x 3
What is 1800
200
Estimate 249 x 5
What is 200 x 5 = 1000
200
12 x 9
What is 10 x 9 = 90 2 x 9 = 18 12 x 9 = 108
200
205 x 3
What is 200 x 3 = 600 0 x 3 = 0 5 x 3 = 15 205x 3 = 615
200
40 x 32
What is 40 x 30 = 1200 40 x 2 = 80 40 x 32 = 1280
300
40 x 8
What is 320
300
Estimate 889 x 6
What is 900 x 6 = 5400
300
37 x 5
What is 30 x 5 = 150 7 x 5 = 35 37 x 5 = 185
300
419 x 5
What is 400 x 5 = 2000 10 x 5 = 50 9 x 5 = 45 419 x 5 = 2095
300
55 x 23
What is 50 x 20 = 1000 50 x 3 = 150 5 x 20 = 100 5 x 3 = 15 55 x 23 = 1265
400
70 x 6
What is 420
400
Estimate 29 x 35
What is 30 x 40 = 1200
400
56 x 6
What is 50 x 6 = 300 6 x 6 = 36 56 x 6 = 336
400
889 x 6
What is 800 x 6 = 4800 80 x 6 = 480 9 x 6 = 54 889 x 6 = 5334
400
97 x 73
What is 90 x 70 = 6300 90 x 3 = 270 7 x 70 = 490 7 x 3 = 21 97 x 73 = 7081
500
800 x 5
What is 4000
500
Estimate 38 x 62
What is 40 x 60 = 2400
500
48 x 8
What is 40 x 8 = 320 8 x 8 = 64 48 x 8 = 384
500
796 x 8
What is 700 x 8 = 5600 90 x 8 = 720 6 x 8 = 48 796 x 8 = 6368
500
38 x 62
What is 30 x 60 = 1800 30 x 2 = 60 8 x 60 = 480 8 x 2 = 16 38 x 62 = 2356
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