Show:
Addition
Addition 2
Subtraction
Subtraction 2
Double-digit Subtraction
100
12 + 8

20

100

25 + 9

34

100

12 - 6

6

100

30 - 6

24

100

12 - 10

2

200

17 + 9

26

200

34 + 5

39

200

48 - 8

40

200

15 - 8

7

200

15 - 12

3

300

33 + 11

44

300

16 + 9

25

300

13 - 5

8

300

16 - 6 

10

300

16 - 11

5

400

22 + 7

29
400

24 + 7

31

400

14 - 7

7

400

25 - 4

21

400

20 - 10

10

500

40 + 9

49

500
30 + 10

40

500

18 - 6

12

500

40 - 5

35

500

12 - 11

1