easy
medium
hard
multipulcation
division
100

3x6

18

100

63/9

7

100

666/2+35-3

365

100

60x1

60

100

36/6

6

200

50x2

100

200

900,000/3

300,000

200

8x(7+7)-8

104

200

7x6

42

200

42/6

7

300

100-25

75


300

67x2

134

300

12x(4+3)+8

92

300

300x20

6000

300

90/10

9


400

2,000+30,000


32,000

400

800x40

32,000

400

90x(2+3)-300

150

400

700x3

2100

400

120/12

10

500

350+280+3

633

500

4582+3085

7667

500

900x(60-55)-50

4,450

500

800x300

240,000

500

320/2

160