Addition
Subtraction
Division
Multiplication
MYSTERY
100
15+15

30

100

5-5

0

100

5/1

5

100

1*1000

1000


100

5*8

40

200

20+32

52

200

20-5

15

200

16/2

8

200

9*2

18

200

200/2

100

300

50+60

110

300

35-20

15

300

90/3

30

300

6*5

30

300

300-45

255

400

450+20

470

400

78-60

18

400

63/9

7

400

9*7

63

400

60+90

150

500

560+20

580

500

100-64

36

500

60/5

12

500

9*8

72

500

450-90

360