Add up to 20

Addition of two numbers with sum up to 20

12

+

7


1

+

1


8

+

5


3

+

1


10

+

9


9

+

7


10

+

5


6

+

14


4

+

5


7

+

4


1

+

15


2

+

6


4

+

16


1

+

1


3

+

6


7

+

9


1

+

5


9

+

9


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