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(22)
Resuelve las sumas y restas en las que se desconoce una cantidad inicial.

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Recommended age: 6 years old
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Mexico

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Problemas Online version

Resuelve las sumas y restas en las que se desconoce una cantidad inicial.

by Andrea Torres Diaz
1

______+7=34, porque 34-7=_____

2

_____+9=21, porque 21-9=_____

3

_____+11=32, porque 32-11=_____

4

_____+20=30, porque 30-20=_____

5

_____+8=18, porque 18-8=_____

6

_____-11=17, porque 17+11=_____

7

_____-22=13, porque 13+22=_____

8

_____-18=9, porque 9+18=_____

9

_____-15=16. porque 16+15=_____

10

_____-21=3, porque 21+3=_____

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