A walkthrough with basic steps for adding and subtracting integer Values.
STEP 1: If necessary/possible turn subtraction into addition.
Subtraction of a positive number is the same as adding the same negative value.
“MINUS POSITIVE” can mean “PLUS NEGATIVE”
Subtraction of a negative value is the same as adding the same positive value.
“MINUS NEGATIVE” can mean “PLUS POSITIVE”
STEP 2: Add the values in the expression using one of the three below rules based on the conditions in your addition problem.
a) Adding two positive numbers:
To add two positive numbers, add the values as normal.
b) Adding two negative numbers:
To add two negative values, add the absolute value of the numbers, and keep the negative sign.
c) Adding two opposite signed numbers:
To add two numbers with opposite signs, find the difference in the absolute values of the numbers, then keep the sign of the number with the larger absolute value.