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Adding Integers

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  • On the number line, start at the first number
  • Use the second number to move spaces
    • If it is a positive number, move to the right
    • If it is a negative number, move to the left
  • The number you land on is the answer
  • Remember that opposites add to zero
  • If both numbers are the same sign, then add the numbers and keep that sign
  • If they are opposite signs, then find the difference of their absolute values and take the sign of the greater number

Add the integers
- 9 + - 15

- 24

Add the integers
- 1 + - 5

- 6

Add the integers
16 + - 8

8

Add the integers
- 16 + 2

- 14

Add the integers
3 + - 20

- 17

Find the value of - 6 + x = - 13

x = − 7

Find the value of - 5 + x = 10

x = 15

Find the value of |16| +|− 5|

  • |16| = 16
  • |−5| = 5
  • 16 + 5

21

Find the value of |−12| = |−9|

  • |−12| = 12
  • |−9| = 9
  • 12 + 9

21

Add the integers - 20 + - 7

- 27

*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.

Answer

Adding Integers

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Mathematics: Basic Math