Show:
Front End Estimation
Two Digit by Two Digit Multiplication
100

15 x 18

100

100

10 x 20

200

200

23 X 77

1400

200

16 x 12 

192

300

33 X 45

1200

300

20 x 14

280

400

50 X 50

2500

400

33 x 24

792

500

49 X 49

1600

500

40 x 18

720

600

61 X 26

1200

600

52 x 36

1,872

700

75 X 15

700

700

61 x 25

1,525

800

88 X 28

1600

800

77 x 53

4,081

900

90 X 29

1800

900

83 x 89

7,387

1000

38 X 77

2100

1000

98 x 63

6,174