Smarty1103 Smarty1103

24-08-2018
Mathematics

contestada

Please help if you can. Integers. Hand writing's messy sorry about that.

Please help if you can Integers Hand writings messy sorry about that class=

Respuesta :

24-08-2018

-9 + 279 = 270.
different signs (negative vs positive) subtract, keep the sign of the highest number.

-9 - 279 = -288.
same signs add and keep

-9 • 279 = -2,511. positives and negatives always equal negatives.

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