adding
subtracting
dividing
timesing
mystery
100

(9+5)x2

28

100

64-88

-24

100

20/5

4

100

8x6

48

100

(6x8)-22

26

200

23+11+7

41

200

\89-(12-3)

80

200

(50/5)/2

5

200

(5x6)x2

60

200

(3x3)/3+6

9

300

11+99+8+22

140

300

36-7

29

300

88/4

22

300

6x15

90

300

2 numbers of pi

3.1

400

89+54

143

400

87-66

21

400

42/7

6

400

(66x3)x2

396

400

6 numbers of pi

3.14159

500

368+88

456

500

876-782

94

500

874/6

145.666

500

(7*3)+(7*4)=

49

500

10 numbers of pi

3.141592653