Important Concepts
Adding Integers
Subtracting Integers
Absolute Value
Opposites
100
Absolute Value
The distance of a number from zero
100
-5 + 9
4
100
-4 - 6
-4 + (-6) = -10
100

|1|

|1| = 1

100

What is the opposite of a negative number?

The opposite of a negative number is a positive number

200
Integer
Positive and negative whole numbers and 0
200
-12 + 5
-7
200
4 - 11
4 + (-11) = -7
200

|-1|

|-1| = 1

200

What is the opposite of a positive number?

The opposite of a positive number is a negative number

300

What does this mean? |-6| = 6

The absolute value of -6 is 6, or -6 is 6 units from zero.

300
-16 + (-17)
-33
300
15 - (-7)
15 + 7 = 22
300

|-29|

|-29|= 29

300

What integer is not positive or negative?

The only integer that is not positive or negative is 0

400

Explain what these signs mean < , >, =



Less than, greater than, and equal to



400

How do you find the answer to a problem that has numbers with different signs?

Subtract and keep the sign of the # with the greater number

400
-27 - (-3)
-27 + 3 = -24
400

|176|

|176| = 176

400

What is the opposite of 24?

The opposite of 24 is -24

500

When looking at numbers on the number line the further to the left the numbers go are they getting bigger or smaller?

Numbers are getting smaller.

500

-19 + -12

-19 + -12 = -31

500

-21 - 21

-21 - 21 = -42

500

|0|

|0| = 0

500

What is the opposite of -586?

The opposite of -586 is 586

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