Addition
Subtraction
Add/Sub
Multiplication
mystery?
ALL
100

101+74

175

100

100-75

25

100

3659+567+345+12

4,583

100

7x4

28

100

How many days in December?

31

100

35 - 45

-10

200

234+234

468

200

846-367


479

200

563-246

317


200

3 x 3

9

200

8/2 or 

How many 2 are in 4?

4

200

671+217

888

300

10+850+30+200

1090

300

964-783

181

300

23.67+56.58

80.25

300

21x1

21

300

How many seconds in a minute? 

60

300

8x4

32

400

76+52+856

984

400

1436-572

864

400

123.456+654.123

777.579

400

6*5

30

400

100/2 or

how many 2s in 100?

50

400

36/6

6

500

258+270+59

587

500

900-780

120

500

25.9+32.7-13.4

45.2

500

67x4

268

500

How many inches in a foot?

12

500

(1/5) * 5

1