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Addition up to 20

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Addition

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#Math #Addition

4+6

10

15

10+10

20

15

8+9

17

15

6+7

13

15

5+12

17

15

9+7

16

15

5+8

13

15

3+11

14

15

4+10

14

15

16+4

20

15

13+5

18

15

9+4

13

15

15+4

19

15

13+2

15

15

14+1

15

15

13+3

16

15