Question

Which number line correctly shows 4.5 – 2.5?

A number line going from 0 to 4.5 in increments of 0.5. An arrow goes from 0 to 4.5 and then backwards from 4.5 to 2.
A number line going from negative 4.5 to 0 in increments of 0.5. An arrow goes from negative 4.5 to negative 2 and then backwards from 0 to negative 4.5.
A number line going from negative 2.5 to positive 4.5 in increments of 0.5. An arrow goes from negative 2.5 to 0 and also from 0 to 4.5.
A number line going from negative 4.5 to positive 2.5 in increments of 0.5. An arrow goes from 2.5 to 0 and from 0 to negative 4.5.
A, B, C, or D

Answer 1

A

Start at 4.5 and move left 2.5 to land at 2.0. Choice A shows going to 4.5 and then back to 2, which represents 4.5 − 2.5 = 2.