## Key Concepts

**Subtraction of Integers**

[latex]5 - 3[/latex] [latex]-5-\left(-3\right)[/latex] [latex]2[/latex] [latex]-2[/latex] [latex]2[/latex] positives [latex]2[/latex] negatives When there would be enough counters of the color to take away, subtract. [latex]-5 - 3[/latex] [latex]5-\left(-3\right)[/latex] [latex]-8[/latex] [latex]8[/latex] [latex]5[/latex] negatives, want to subtract [latex]3[/latex] positives [latex]5[/latex] positives, want to subtract [latex]3[/latex] negatives Need neutral pairs Need neutral pairs When there would not be enough of the counters to take away, add neutral pairs. **Subtraction Property**- [latex]a-b=a+(-b)[/latex]
- [latex]a-(-b)=a+b[/latex]

**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.

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