maoelaoliveira0 maoelaoliveira0

01-10-2018
Mathematics

contestada

Calcule:

a) (+9) + (-5) =

b) (+3) + (-4) =

c) (-8) + (+6) =

Respuesta :

musiclover10045 musiclover10045

01-10-2018

a) 9 + -5 = 9-5 = 4

b) 3 +-4 = 3 -4 = -1

c) -8 + 6 = -2

Answer Link

Pauluck Pauluck

01-10-2018

I have ued the zero pairs strategy, I hope you are familiar with that! Hope i helped!

Ver imagen Pauluck

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