Vocab
Adding Integers
Subtracting Integers
Mix
Rules
100
Absolute Value
The distance of a number from zero
100
-5 + 9
4
100
-4 - 6
-10
100
-2 - 3
-5
100

Adding Same sign integers

Add the numbers and keep the sign.

200
Integer
The set of whole numbers and their opposites.
200
-12 + 5
-7
200
4 - 11
-7
200
-10 + 30
20
200

Adding different sign integers

Subtract the numbers and keep the sign of the higher number

300
Opposite
The opposite of a number is the same distance from zero as the original number just on the other side.
300
-16 + (-17)
-33
300
15 - (-7)
22
300
21 - (+5)
16
300

Subtracting integers

  • Keep the first number
  • Change the subtraction sign into an addition sign
  • Change the second number to its opposite
  • Follow our addition rules for your new problem
400
|-6|
Absolute value of -6 = 6
400

19 + (-15)

4

400
-27 - (-3)
-24
400

-5 + 8 - (-15)

18

400

How to solve this problem?

-5 - (-16)

keep -5 change subtraction to addition and switch -16 to a positive and solve. Ans = 11

500
6 and -6
Opposites
500

-16+18+ (-17)

-15

500
-10 - 11 - (-3)
-18
500
-10 + (-2) - 5
-17
500

How to solve this?

-16 + (-6)

Add the numbers and keep the sign. Ans = -22

M
e
n
u