Lesson 5: Subtraction of Whole Numbers
Subtraction is the process of taking one number away from another to find the difference.
Steps to Subtract
- Line up the digits by place value.
- Subtract from right to left.
- If the top digit is smaller than the bottom digit, borrow from the next column.
Examples
58 - 29 = 29
150 - 75 = 75
425 - 125 = 300
Where You Use Subtraction
Subtraction helps you find the difference in prices, time left, scores in games, and how many items remain after some are taken away.