Adding and Subtracting Integers

Vocab

100

Integer

Integer: A whole number that can be positive, negative, or zero

200

Positive Integer

Positive Integer: A whole number greater than zero.

300

Number Line

Number Line: A line that displays numbers in order, with equal spacing.

400

Additive Inverse

Additive Inverse: Two numbers that, when added together, equal zero.

500

Expression

Expression: A mathematical phrase that combines numbers and operations.

Adding Integers

100

2 + (-2)

0

200

4 + (-1)

3

300

-6 + (-7)

-13

400

-16+18

2

500

10 + (-20)

-10

Subtracting Integers

100

-4 - (-4)

0

200

-10 - 11

-21

300

5 - (-7)

12

400

-12 - (-3)

9

500

-18 - (-15)

-3

Mix

100

-2 + 3 +2

3

200

-10 + (-2) - 5

-17

300

10 + (-9) - (-1)

2

400

-1 + 1 - (-1) + (-1) - (-5)

5

500

-16+18+-17

-15

Rules

100

When can you use the bathroom

After first and before last 10 minutes of class

200

Where do papers go when done

Black tray

300

When can we ask for water

first and last 5 minutes of class

400

How long do we have on do now's?

5 minutes

500

What are we not allowed to touch during a drill

Anyone else / teachers desk