SUMA Y RESTA DE NÚMEROS

suma y resta

de números con signo

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Cálculo mental:

Start

representación en la recta numerica:

CUANDO HAY NÚMEROS ENTRE PARENTESIS CON ALGÚN SIGNO ENTRE ELLOS , LA OPERACIÓN QUE SE DEBE REALIZAR ES UNA REDUCCIÓN, PARA ELLO, ES NECESARIO ELIMINAR LOS PARENTESIS Y HACER LA SIMPLIFICACIÓN USANDO LA LEY DE SIGNOS:

REDUCCIÓN CON PARENTESIS

ley de los signos en la suma

Si los números tienen el mismo signo se suman, conservando el signo..... si los números tienen distinto signo se restan, dejando el signo del mayor.

EJEMPLOS

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• Generate experiences with your content.
• It’s got the Wow effect. Very Wow.
• Make sure your audience remembers the message.

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