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Desafío de Sumas y Restas

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Reto rápido de operaciones

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Desafío de Sumas y Restas
 

Desafío de Sumas y RestasOnline version

Reto rápido de operaciones

by Analia Ogas
1

¿Cuánto es 158 + 274?

2

Si a 750 le restas 163, ¿cuánto queda?

3

Resuelve: 420 + 380 - 150

4

¿Cuánto es 999 - 478?

5

¿Cuánto da: 123 + 77 - 60?

6

Despeja: 1000 - 333 + 50

7

¿Cuánto es 450 + 250 - 300 + 100?

8

Si 600 + 250 - 400 = ?

9

Resuelve: 75 + 95 - 60

10

Una caja tiene 350 tarjetas y se reparten 120, luego se añaden 80 ¿cuántas quedan?

Explicación

La suma de centenas, decenas y unidades da 432.

Realiza la resta 750-163 paso a paso para obtener 587.

Suma 420+380=800 y luego resta 150 para obtener 650.

Resta zona de centenas y decenas: 999-478=521.

Primero 123+77=200, luego 200-60=140.

(1000-333)=667; 667+50=717.

Paso a paso: 450+250=700; 700-300=400; 400+100=500.

(600+250)=850; 850-400=450.

75+95=170; 170-60=110.

Primero 350-120=230; 230+80=310.

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