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10

5 + 5

10

10

5 + 6

11

10

4 + 1 = 5

1 + 4 = 5

10

4 + 3

7

10

7 + 5


12

20

4 + 4

8

20

4 + 5

9

20

6 + 2 = ___

2 + 6 = ___

20

5 + 3 = 

5 + 4 = 

8

9

20

8 + 6 

14

30

16

8 + 8


30

6 + 7

13

30

3 + 5 = ___

5 + 3 = ___

30

6  + 3 =

6 + 4 = 

9

10

30

9 + 4 

8 + 7

13

15

40

18

9 + 9

40

8 + 9

17

40

8 + 4 = ___

4 + 8 = ___

40

8 + 7 = 

9 + 8 =

15 

17

40

9 + 4

8 + 5

7 + 6

13

50

30

15 + 15

50

11 + 10

21

50

9 + 6 = ___

6 + 9 = ____

50

8 + 5 

9 + 6

13

15

50

9 + 5

8 + 6

10 + 4

14