### Home > CC1 > Chapter 4 > Lesson 4.1.2 > Problem 4-20

4-20.

Each expression below begins with

For example, if the expression reads *left* on a number line

a.

b.

See the hint for part (a).

Left,

c.

Which direction should you move to add

4-20.

Each expression below begins with

For example, if the expression reads *left* on a number line

a.

b.

See the hint for part (a).

Left,

c.

Which direction should you move to add