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Abre el Candado Matemático

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Abre el Candado Matemático

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About this activity

Reto de operaciones para abrir el candado

Created by

Diana Carolina Vásquez Millares
Diana Carolina Vásquez Millares
Colombia

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Abre el Candado Matemático
 

Abre el Candado MatemáticoOnline version

Reto de operaciones para abrir el candado

by Diana Carolina Vásquez Millares
1

Reto 1a: 8 + 6 = __

Pistas

El resultado es un número entre 10 y 20.

Suma los dos números dados.

Primera suma.

2

Reto 1b: 5 + 7 = __

Pistas

El resultado es mayor que cualquiera de los sumandos.

Agrégalos para obtener el total.

Primero identifica los sumandos.

3

Reto 1c: 9 + 4 = __

Pistas

El resultado es único y exacto.

Suma rápido para encontrar el total.

Piensa en cuántas veces se suman.

4

Reto 2a: 15 - 6 = __

Pistas

El resultado es positivo y menor que 15.

Quita 6 de 15.

Resta para ver cuánta cantidad queda.

5

Reto 2b: 13 - 5 = __

Pistas

El número es menor que 13 y mayor que 5.

Encuentra cuántas quedan.

Quita 5 de 13.

6

Reto 2c: 18 - 9 = __

Pistas

El resultado es 9.

Resta la mitad de 18.

7

Reto 3a: 7 + □ = 12

Pistas

Qué número sumado a 7 da 12?

Busca el valor que aumenta 7 hasta 12.

8

Reto 3b: 5 + □ = 11

Pistas

Necesitas 6 para completar 11.

Determina qué suma da 11 partiendo de 5.

9

Reto 3c: □ + 8 = 15

Pistas

Piensa en la diferencia entre 15 y 8.

Qué cantidad sumada a 8 da 15?

 
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