Addition
Missing Number
Subtraction
Subtraction 2
100
1 + 0
1
100

5 + _ = 8

3

100
4 - 3
1
100

20 - _ = 20

0

200
15 + 3
18
200

13 + _ = 19

6

200
11 - 3
8
200

14 - _ = 12

2


300

10 + 8

18

300

16 + _ = 20

4

300
18 - 2
16
300

13 - _ = 7

6

400

17 + 8 

25

400

_ + 10 = 20

10

400

19 - 4

15

400

19 - _ = 6

13

500

20 + 9

29

500

_ + 17 = 25

8

500

20 - 18

2

500

18 - _ = 9

9 

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