2 by 1 digit
2 by 2 digits
3 by 2 digits
4 by 2 digits
10, 100, 1000
100

23 × 2

46

100

16 × 17

272

100

143 × 17

2,431

100

2014 × 23

46,322

100

7 × 1000

7000

200

46 × 5

230

200

28 ×  18

448

200

241 × 25

6025

200

4526 × 43

194,618

200

3400 × 100

340,000

300

57 × 8

456

300

51 × 37

1,887

300

407 × 34

13,838

300

6548 × 76

497,648

300

5800 × _______ = 580,000

100

400

78 × 9

702

400

67 × 64

4,288

400

634 × 76

48,184

400

3458 × 98

338,884

400

230 × __________ = 69,000

300

500

98 × 9

882

500

87 × 79 

6,873

500

849 × 97

82,353

500

8709 × 97

844,773

500

5600 × ___ = 224,000

40