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Dodawanie i odejmowanie liczb w zakresie 20.

Polish 17 Public

Działania.

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7 + 7 =

14

10

8 + 8 =

16

10

9 + 9 =

18

10

9 + 3 =

12

10

8 + 5 =

13

10

7 + 8 =

15

10

12 - 3 =

9

15

14 - 8 =

6

15

11 - 6 =

5

15

15 - 8 =

7

15

13 - 5 =

8

15

12 - 8 =

4

15

6+6=

12

10

7+6=

13

10

18 - 9=

9

15

15 - 7=

8

15

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