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Divisibilidad por 11: la diferencia que decide

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Prueba rápida para 11

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Divisibilidad por 11: la diferencia que decide
 

Divisibilidad por 11: la diferencia que decideOnline version

Prueba rápida para 11

by KARLA HERNANDEZ LISCANO
1

Tengo un número de varios dígitos y quiero saber si es divisible entre 11. ¿Qué propiedad debo calcular para confirmarlo, usando las sumas de dígitos en posiciones alternas?

Pistas

Ejemplo rápido: para 121, calcula 1 - 2 + 1 = 0, y 0 es múltiplo de 11, por lo que 121 es divisible por 11.

Si la diferencia entre esas dos sumas es un múltiplo de 11 (incluido 0), entonces el número es divisible por 11.

Piensa en asignar signos + y - a los dígitos, alternando a medida que avanzas por el número.

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