CCSS Math: 7.NS.A.1
Review the basic of adding negative numbers and try some practice problems.

## Adding negative numbers with a number line

Lets add $-6+(-7)$.
Step 1: Start at the first number, in this case $-6$:
Step 2: Move $7$ more places to the left. We move $7$ to the left because adding negative $7$ decreases our number by $7$.
$-6+(-7)$ takes us to $-13$ on the number line.
$-6+(-7)=-13$

### Adding a negative number and a positive number

Lets add $-8+3$.
Step 1: Start at the first number, in this case $-8$:
Step 2: Move $3$ places to the right. We move $3$ to the right because adding positive $3$ increases our number by $3$.
$-8+3$ takes us to $-5$ on the number line.
$-8+3=-5$
$5+(-4)=$