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Revised Addition and subtraction with missing nu ...

English 27 Public

missing numbers

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7 + ? = 15

8

15

? - 5 = 10

15

15

? + 9 = 16

7

15

18 - ? = 10

8

15

13 + 6 =

19

15

14 - 6 =

8

15

17 - ? = 5

12

15

11 + ? = 17

6

15

15 - 4 =

11

15

3 + 14 =

17

15

14 - 8 =

6

15

12 + 8 =

20

15

18 - ? = 5

13

15

8 + ? = 16

8

15

? - 7 = 12

19

15

? + 7 = 16

9

15

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