Lizzy190 Lizzy190

02-09-2017
Mathematics

contestada

Can someone please help
calculate the given expressions
199 - 199
-67 - -67
21 + -21
do i add and subtract normally

Respuesta :

halo9274 halo9274

02-09-2017

199-199=0
-67 - -67= 0
21 + -21= 0

I'm thinking that's how it goes.

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torresoctavio0ovb4st torresoctavio0ovb4st

02-09-2017

yep, subtracting a negative is like adding. and the others are normal, adding a negative is like subtracting.

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