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cmental (1)
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calculo mental
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Ejercicios de clculo mental - Practica de la suma.
Suma de dos numeros menores de 10. Completa los cuadros en blanco.
8 + 9 = 9 + = 17
5 + 3 = 7 + = 15
2 + 6 = 3 + = 9
2 + 3 = 2 + = 8
9 + 7 = 4 + = 12
5 + 7 = 6 + = 14
2 + 8 = 5 + = 11
6 + 3 = 2 + = 11
9 + 4 = 3 + = 11
7 + 2 = 7 + = 11
6 + 7 = 4 + = 7
3 + 1 = 3 + = 9
1 + 7 = 4 + = 10
1 + 4 = 8 + = 15
8 + 4 = 3 + = 10
8 + 1 = 7 + = 8
3 + 5 = 8 + = 13
8 + 8 = 8 + = 13
3 + 7 = 7 + = 9
5 + 3 = 2 + = 6
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