Adding and Subtracting Integers

Vocab

100

The distance of a number from zero

Absolute Value

200

The set of whole numbers and their opposites.

Integer

300

The opposite of a number is the same distance from zero as the original number just on the other side.

Opposite

400

Two integers whose sum is 0

Zero Pairs/Additive Inverses

500

Two numbers that are the same distance from 0

Opposites

Adding Integers

100

-5 + 9

4

200

-12 + 5

-7

300

-16 + (-17)

-33

400

14 + (-18)

-4

500

-16+18+-17

-15

Subtracting Integers

100

-4 - 6

-10

200

4 - 11

-7

300

15 - (-7)

22

400

-27 - (-3)

-24

500

-10 - 11 - (-3)

-18

Mix

100

-2 - 3

-5

200

-10 + 30

20

300

21 - (+5)

16

400

Subtracting a negative is the same thing as...

Adding a positive

500

-10 + (-2) - 5

-17

Distance on a Number Line

100

What is the distance between 3 and 8?

5

200

What is the distance between -4 and -7?

3

300

What is the distance between -5 and 19?

24

400

The elevation of a city on a hill is 1,254 ft. The elevation of a town in a valley is -45 feet. What is the difference in their elevations?

1,299 feet

500

The temperature on the coldest day of the season was -24 degrees. The temperature rose to -7 by the end of the day. What was the difference in temperature?

17 degrees