Question

use the number line to subtract.
-5 - 4
(a) draw two arrows to show -5 - 4.
(b) -5 - 4 =

Explanation:

Step1: Locate first number on line

Start at $-5$ on the number line.

Step2: Subtract 4 by moving left

Move 4 units left from $-5$: $-5 - 4 = -(5+4)$

Step3: Calculate final value

$$\begin{align*} -(5+4) &= -9 \end{align*}$$

Answer:

(a) First arrow: From 0 to $-5$ (leftward). Second arrow: From $-5$ 4 units left to $-9$.
(b) $-9$