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Parts of 20: addition and subtraction

English 25 Public

Addition and subtraction problems within 20.

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10 + 1 =

11

15

10 + 2 =

12

15

10 + 3 =

13

15

10 + 4 =

14

15

10 + 5 =

15

15

10 + 6 =

16

15

10 + 7 =

17

15

10 + 8 =

18

15

10 + 9 =

19

15

10 + 10 =

20

15

20 - 10 =

10

15

19 - 10 =

9

15

18 - 10 =

8

15

17 - 10 =

7

15

16 - 10 =

6

15

15 - 10 =

5

15

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