Show:
Subtraction single digit
Subtraction double digit
Multiplication
Addition single digit
Addition double digit
100

7-4=

3

100

16-5=

11

100

7x3=

21

100

9+4=

13
100

12+6=

18
200

8-3=

5

200

14-7=

7
200

3x3=

9

200

7+8=

15
200

14+8=

22
300

9-1=

8

300

12-8=

4

300

4x5

20

300

8+9=

17

300

12+45=

57

400

8-6=

2

400

18-9=

7

400

2x1=

2

400

5+7=

12

400

20 + 19

39

500

9-3=

6

500

20-12=

8

500

6x3=

18

500

6+9=

15

500

15+17=

32