Dodawanie i odejmowanie do 20

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Kolor żółty

6 + 6 = 9 + 7 =

9 + 9 = 11 + 9 =

8 + 6 = 6 +7 =

10 + 9 = 20 - 4 =

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Kolor czerwony

12 - 10 = 20 - 10 =

20 - 12 =

Kolor różowy

8 + 7 = 19 - 2 = 11 - 10 = 6 + 5 =

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12

17 18 16

15

11 8

1 1 10 2

1 19 16

20

13 14