Show:
addition
subtraction
mixed
multiplacation
100

7+20=?

27

100

35-6=?

29

100

30+26-4

52

100

1 times 6=?

6

200

16+24=?

40

200

10-3=?

7

200

3 times 2 + 3+2

11

300

30+46=?

76

300

300-201

99

400

32+14+1

47

500

600+800+700

2100