Review the basic of adding negative numbers and try some practice problems.

Adding negative numbers with a number line

Adding 2 negative numbers

Lets add minus, 6, plus, left parenthesis, minus, 7, right parenthesis.
Step 1: Start at the first number, in this case minus, 6:
Step 2: Move 7 more places to the left. We move 7 to the left because adding negative 7 decreases our number by 7.
minus, 6, plus, left parenthesis, minus, 7, right parenthesis takes us to minus, 13 on the number line.
minus, 6, plus, left parenthesis, minus, 7, right parenthesis, equals, minus, 13

Adding a negative number and a positive number

Lets add minus, 8, plus, 3.
Step 1: Start at the first number, in this case minus, 8:
Step 2: Move 3 places to the right. We move 3 to the right because adding positive 3 increases our number by 3.
minus, 8, plus, 3 takes us to minus, 5 on the number line.
minus, 8, plus, 3, equals, minus, 5
Want to learn more about adding negative numbers? Check out this video.

Practice

Problem 1
Add.
5, plus, left parenthesis, minus, 4, right parenthesis, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i

Want to try some more adding negative numbers problems? Check out this exercise.