Easy
Medium
Hard
Impossible
Extreme
100

4+4=

8

100

10+10=

20
100

3x1=

3

100

46/5=

9r2

100
89x23=

2,047

900

1+1=

2
900

50+50=

100
900

6x6=

36

900

45/5=

9

900

79x5=

395

2000

3+4=

7

2000

34+55=

89

2000

9x9=

81

2000

54/3=

18

2000

395/5=79


79

4000

5+5=

10

4000
35-4=

31

4000

12x4=

48

4000

15/2=

7.5

4000

144/12=

12

6000

6+4

10
6000

500+276=

776

6000
16x3=
48
6000

81/9=

9
6000

752/5=

150r4