Show:
multiplying 1 digit numbers
multiplying 2 digit numbers
multiplying fractions
multipling large numbers
adding large numbers
100

7 * 7 = 

49

100

10 * 10 = 

100

100

1/1 * 1/1 =

1/1

100

200 * 300 = 

600

100

40 + 80 = 

120

200

9 * 2 = 

18


200

12 * 12 =

144

200

1/2 * 1/4

1/8

200

3 * 60 = 

180

200

47 + 67 = 

114

300

2 * 8 = 

16

300

16 * 16 = 

136

300

5/7 * 6/7 = 

30/49

300

25 * 25 = 

425

300

56 + 68 = 

124

400

8 * 8 = 

64

400

20 * 20 = 

400

400

7/8 * 4/5 = 

28/40

400

35 * 10 = 

350

400

83 + 45 = 

128

500

7 * 6 = 

42

500

17 * 36 = 

342

500

7/8 * 9/10 = 

53/80

500

24 * 15 = 

360

500

160 + 170 = 

230