EngradeWikisIntegers › Subtraction

Subtraction

Subtracting Integers

The number one rule for subtracting integers is...
ADD its opposite

Example
5 - 6
Step 1: Change the minus sign to a plus sign, hence the rule ADD.
5 + 6
Step 2: Find the opposite of the second number
5 + (- 6)
Step 3: Use the rule of adding integers with different signs. You subtract then use the sign of the greater value
5 + (- 6) = - 1

Subtracting Multiple Integers:
Always solve from LEFT to RIGHT

Example
5-(-10) - 3 - 1
Step 1: Start with the first two numbers, and follow the rule in subtracting. No shortcuts!!
5-(-10)-3
= 15 - 3 - 1
Step 2: Bring down the other numbers and go back to step 1.
15 - 3 - 1
= 12 - 1
= 11
    Close