Question

The present temperature is 5°C. The Weather Forecaster expects the temperature to fall 8 degrees during the night. how cold will get it

Answer 1

So it's 5 degrees now tonight it will be colder how do i figure that out?

Answer 2

draw a number line

Answer 3

Okay

Answer 4

start at 5 and go to the left 8 units (to visually represent the idea of 5 - 8)

Answer 5

So it's -3?

Answer 6

good

Answer 7

another way to do it

5-8 is really 8-5 but it's negative since the larger number is second

Answer 8

oh I get it now