maoelaoliveira0 maoelaoliveira0
  • 01-10-2018
  • Mathematics
contestada

Calcule:

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

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

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

Respuesta :

musiclover10045
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 Pauluck
  • 01-10-2018
I have ued the zero pairs strategy, I hope you are familiar with that! Hope i helped!
Ver imagen Pauluck
Answer Link

Otras preguntas

can someone explain what's n+1-3n=-5+n+1-2
What causes the uneven distribution of sunlight over the globe? A. the earth's distance from the sun B. the rate of the earth's rotation C. the earth's axial ti
you have 36 coins. the ratio of heads to tails is 3 to 1. how many coins are heads?
Describe how changes in an ecosystem can affect organisms that live there.
a 24 foot tall tree cast a 30 foot long. a 4 foot tall child is standing nearby how long is the child's shadow
Describe how changes in an ecosystem can affect organisms that live there.
A Rectangle Measures 11Cm By 30 Cm. What is its area?
What is the slope-intercept equation of the line if the y-intercept= (0,2) and the slope= -1/4 ?
what is 0.083 repeting as a percentage?
what is 4/5 times 10?