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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