Simple operations 1


Tables of addition

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Tables of subtraction

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Instructions: Press one of the buttons on the right column The correct number is put in red .

2 + 5 =

4 + 6 =

6 + 8 =

8 + 7 =

10 + 9 =

14 - 3 =

14 - 5 =

13 - 7

16 - 9

17 - 11 =

3 + 2 =

5 + 11 =

7 + 7 =

9 + 7 =

11 + 7 =

5 - 2 =

12 - 4 =

17 - 6 =

11 - 8 =

16 - 10 =

2 + 2 =

4 + 11 =

6 + 4 =

8 + 5 =

10 + 3 =

6 - 3 =

12 - 5 =

18 - 7

14 - 9

22 - 11 =

3 + 10 =

5 + 3 =

7 + 9 =

9 + 5 =

11 + 9 =

11 - 2 =

10 - 4 =

9 - 6 =

17 - 8 =

21 - 10 =



 


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®Arturo Ramo García.-Record of intellectual property of Teruel (Spain) No 141, of 29-IX-1999
Plaza Playa de Aro, 3, 1º DO 44002-TERUEL