Question

Which number line correctly shows –3 – 1.5?
A number line going from negative 4.5 to positive 4.5. An arrow goes from 0 to negative 3 and from negative 3 to negative 4.5.
A number line going from negative 4.5 to positive 4.5. An arrow goes from 0 to 3 and from 3 to 4.5.
A number line going from negative 4.5 to positive 4.5. An arrow goes from negative 3 to negative 1.5 and from 0 to negative 3.
A number line going from negative 4.5 to positive 4.5. An arrow goes from negative 1.5 to 1.5 and from 0 to negative 1.5.

Answer 1

Could you show an image instead, please?

Answer 2

@lyric:

thoughts?

the way they want you to do it: start at 0, then subtract 3 units from 0 to get -3, then subtract 1.5 units again to represent the subtraction of 1.5

with this in mind, which number line do you think best represents the subtraction?