addition
subtraction
multiplication
100

8+2

10

100

100-900

800

100

1x1

1

200

15 + 15

30

200

1-1

0
200

1000x3

3000

300

1000+2000

3,000

300

2-2

0

300

12x2

24

400

300+400

700

400

200-1000

800

400

11x11

121

500

1+1

2

500

111-1

110

500

10x10

100

M
e
n
u