math 1
math 2
math 3
math 4
math 5
100

1+1

2

100

2+2

4

100

3+3

6

100

4+4

8

100

5+5

10

200

1x67

67

200

2x7

14

200

3x9

27

200

4x3

12

200

5x4

40

300

1-5

-4

300

2-9

-7

300

3-10

-7

300

4-12

-8

300

5-13

-8

400

7*1

7

400

8*2

4

400

3*5

0.6

400

2*4

0.5

400

5*5

1

500

4-4

0

500

10x1

10

500

9x8

72

500

2+3

5

500

50+70

120