1. 1
Introduction to Algebra:
Integers

2. R.1 Fractions
1.7 Dividing Integers
Objectives
Divide integers.
Identify properties of division.
Combine multiplying and dividing of integers.
Estimate answers to application problems involving division.
Interpret remainders in division application problems.

3. Divide integers.
The answer to a division problem is called the quotient.

4. Divide integers.

5. Divide integers. Divide the integers. Example (a) (b) Different signs,
quotient is negative.
Same sign,
quotient is positive.

6. Identify properties of division.

7. Combine multiplying and dividing of integers.
Simplify.
Example
Do operations inside parentheses first.
Start at the left and perform operations from left to right.

8. Combine multiplying and dividing of integers.
Simplify.
Example
No operations inside parentheses. Start at the left and perform operations from left to right.

9. Estimate answers to application problems involving division.
During a 24-hour lab experiment, the temperature of a solution dropped 96 degrees. Estimate the average drop in temperature each hour.
Example
Front end rounding: –96 degrees rounds to –100
and 24 hours rounds to 20.

10. Interpret remainders in division application problems.
The math department at Lake Community College has $360 to buy calculators for the math lab. If the calculators cost $25 each, how many can be purchased? How much money will be left over?
Example

11. Interpret remainders in division application problems.
Example
Luke’s son is going on a Scout camping trip. There are 135 Scouts. Luke is renting tents that sleep 6 people each. How many tents should he rent?
Luke will need to rent 23 tents.