Overall Review: Integers and Rational Numbers

What are opposites?

Each integer has an opposite. If the integer is positive, the opposite is negative. If the integer is negative, the opposite is positive.

5 and -5 are opposites.

Absolute Value

Multiple Choice

What is the opposite of 19?

• 19

• -19

Multiple Choice

What is the opposite of -12?

• 12

• -12

Multiple Choice

What is the absolute value of -8?

• 8

• 0

• -8

Multiple Select

Which integers have an absolute value of 7?

• 1/7

• 7

• 0

• -7

• -1/7

Same Signs: Add like normal

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Different Signs: Subtract, take the sign from the integer with the HIGHEST absolute value

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Adding Integers Rule

Fill in the Blanks

- 3 + - 1

Fill in the Blanks

10 + - 6

Multiple Choice

Using additive inverse, write this problem as an addition problem.

-22 - (-7)

• -22 + 7

• -22 + (-7)

• 22 + 7

• 22 + (-7)

Draw

How would you rewrite -10 - 5?

Fill in the Blanks

$-81\div-9$  

Fill in the Blanks

-8 x 3

Poll

What integer represents this situation?

An elevator goes up 8 stories.

• 8

• -8

• 16

• 0.8

Poll

What integer represents this situation?

The temperature drops to 25 degrees below zero.

• 25

• -25

• 50

• 5

Draw

A scuba diver dove down under the water 5 meters. Then the scuba diver came back up 3 meters to see a jellyfish. What is the elevation after going back up 3 meters?

Draw

At midnight it was 4 degrees below zero. Then it got 4 degrees warmer by morning. What is the temperature in the morning?

Draw

A football team lost 5 yards on 4 consecutive plays. What is the total change in yards from where the team started?

Draw

The record low temperature for a town is -13°F. Yesterday, it was 6°F. What is the difference between the two temperatures?

Example # 3

Example #1 

Multiple Choice

There is 1/3 of a pan of brownies left. Four children are going to share it equally. What fraction of the whole pan of brownies will each child get?

• 7

• 1/12

• 1/7

• 12

Multiple Choice

There are 12 yards of fabric. Each pillow uses 2/3 yard. How many pillows can be made?

• 8 pillows
• 12 pillows
• 18 pillows