Multiplication

2 by 2

100

24X15

360

200

Estimate the answer: 45X39

2,000

300

36X28

1,008

400

64X42

2,688

500

58X57

3,306

3 by 2

100

102X23

2,346

200

206X14

2,884

300

Estimate the answer: 364X35

16,000

400

428X42

17,976

500

482X74

35,668

3 by 3

100

107X123

13,161

200

327X245

80,115

300

583X492

286,836

400

Estimate the answer: 692X432

280,000

500

637X429

273,273