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Desafío de Restas con Estrategias

Froggy Jumps

Played 1 %Accuracy 40 Average time 01:45

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Elige y justifica tu estrategia.

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Colombia

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Desafío de Restas con Estrategias
 

Froggy Jumps

Desafío de Restas con EstrategiasOnline version

Elige y justifica tu estrategia.

by Paula Montesori
1

Para 56 - 19, ¿qué estrategia conviene más y por qué (descomposición o saltos en la recta)?

2

Si al restar 12 - 7 la cantidad disminuye o aumenta respecto al minuendo?

3

¿Qué estrategia usarías para 40 - 15 si quieres ver el problema como 40-10-5?

4

En 25 - 9, ¿qué nos ayuda más para calcular rápido?

5

Verdadero o Falso: toda resta con minuendo menor que el sustraendo da resultado positivo.

6

Completa: 68 - 24 puede resolverse como 68-20-4 usando la estrategia de.

7

Cuando el problema pide restar 33 - 17, ¿qué estrategia facilita ver 33-17 como 33-10-7?

8

¿Qué te ayuda a no cometer errores al restar 50 - 28?

9

Completa: para 72 - 38, es más claro pensar en 72-40+2 usando la estrategia de.

10

Si el enunciado dice que la cantidad cambia al restar, ¿qué idea te indica que la resta podría ser

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