Key Concepts

Subtraction of Integers

$5 - 3$	$-5-\left(-3\right)$
$2$	$-2$
$2$ positives	$2$ negatives
When there would be enough counters of the color to take away, subtract.

$-5 - 3$	$5-\left(-3\right)$
$-8$	$8$
$5$ negatives, want to subtract $3$ positives	$5$ positives, want to subtract $3$ negatives
Need neutral pairs	Need neutral pairs
When there would not be enough of the counters to take away, add neutral pairs.

Subtraction Property
- $a-b=a+(-b)$
- $a-(-b)=a+b$
Solve Application Problems
- Step 1. Identify what you are asked to find.
- Step 2. Write a phrase that gives the information to find it.
- Step 3. Translate the phrase to an expression.
- Step 4. Simplify the expression.
- Step 5. Answer the question with a complete sentence.

STOP!