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Desafío de sumas

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Desafío de sumas

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About this activity

Desafío rápido de sumas de dos dígitos

Created by

OSWALDO JOSE LOPEZ SALGADO
OSWALDO JOSE LOPEZ SALGADO
Colombia

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Desafío de sumas
 

Desafío de sumasOnline version

Desafío rápido de sumas de dos dígitos

by OSWALDO JOSE LOPEZ SALGADO
1

¿Cuánto es 15 + 7?

2

¿Cuánto es 34 + 9?

3

¿Cuánto es 21 + 14?

4

¿Cuánto es 50 + 20?

5

¿Cuánto es 63 + 29?

6

¿Cuánto es 48 + 37?

7

¿Cuánto es 12 + 33?

8

¿Cuánto es 27 + 58?

9

¿Cuánto es 76 + 24?

10

¿Cuánto es 58 + 17?

Explicación

La respuesta correcta es 22; 21, 23 y 20 son resultados incorrectos.

42 y 44 son adyacentes erróneas; 33 es correcto para otra operación.

37 no aplica; 34/36 son cercanos, pero 35 es correcto.

Los otros números no coinciden con la suma real de 70.

63+29 es 92; 91 y 93 son errores cercanos.

84 o 86 son cercanos, pero la suma es 85.

44/46 son adyacentes; 40 es de otra suma.

83/86/90 no son la suma correcta; 85 sí.

La suma exacta es 100; los demás son ligeros errores.

74/76/80 no corresponden a 58+17; 75 sí.

 
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