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Integers
Comparing Integers
Word Problems
Absolute Value
On a Number Line
100
What is an integer?
Any whole number and it's opposite
100
0 ? -1
> greater than
100

Edie is very interested in cryogenics (the science of very low temperatures). With the help of her science teacher she is doing an experiment on the affect of low temperatures on bacteria. She cools one sample of bacteria to a temperature of -51°C and another to -76°C. What was the temperature difference in the two experiments?

25 degrees
100
What is the absolute value of a number?
The distance the number is from zero.
100
Which number do you land on if you start on the number 4 and travel 12 spaces to the left?
-8
200
What is the opposite of -8?
8
200
-10 ? -9
<
200

If it is -25F in Rantoul and it is 75F in Honolulu, what is the temperature difference between the two cities?

100 Degrees
200
[-8]
8
200
Which number do you land on if you start at 2, travel 5 spaces to the left, and then 8 spaces to the right.
5
300

How can you represent a debt of $500?

$-500

300
How can you compare integers?
Use a number line, the farther the number is to the left, the less the number
300

A monkey sits on a limb that is 25 ft above the ground. He swings up 10 ft, climbs up 6 ft more then jumps down 13 ft. How far off the ground is the monkey now?

28 feet
300
[-7] ? [-8]
<
300

Start at negative 5, take away 4, subtract 3, and finally add 11. Where do you end up?

-1
400

Which type of number would represent below sea level, sea level, and above sea level?

negative, 0, and positive

400
Order from LEAST to Greatest:

-4, 5, -5, 0, 4

-5,-4,0,4,5
400

You owe $225. on your credit card. You make a $55. payment and then purchase $87 worth of clothes at Lulu. What is the integer that represents the balance owed on the credit card?

$-257.00
400
[-7] + [-12] - [15] =
4
400
Start at absolute value of negative 8, subtract 10, subtract 5, finally add 3 squared. Where do you end up?
2
500

Jed receives a cable television bill for $39. However, there is a late charge of $3.00. He receives a credit of $15.00 for vacation time when the cable was disconnected. How much was his bill?

$27
500
Mary had a debt of $501 in her bank account. Sarah had a credit of $255 in her bank account. Who has more money and by how much?
Sarah by $756
500

A submarine dove 836 ft. It rose at a rate of 22 ft per minute. What was the depth of the submarine after 12 minutes?

-572 feet
500
-[5-8] + [-12] + [2]^2=
13
500

In a game of tug-of-war, a team wins by pulling the flag over its goal line. The flag begins at 0. During a game, the flag moves 8 feet to the right, 12 feet to the left, and 13 feet back to the right. Did a team win? Explain.

Right side wins by 9 feet.