Show:
adding
Subtraction
Much education
Division
100

what is 6+9?

15

100

1-1

0

100

1x1

1

100

0 / 36

0

200

what is 12+3?

15

200

6-5

1

200

3x7

21

200

2 / 18

9

300

13+8?

21

300

20-10

10

300

2x9

18

300

5 / 20

4

400

84+83

167

400

795+74

721

400
5x10

50

400

1 / 8

8

500

127+41

168

500

7952-941

7011

500

2x743

1486

500

9 /36

4