## Key Concepts

Operation | Notation | Expression | Read as | Result |
---|---|---|---|---|

Subtraction | [latex]-[/latex] | [latex]7 - 3[/latex] | seven minus three | the difference of [latex]7[/latex] and [latex]3[/latex] |

**Subtract whole numbers.**- Write the numbers so each place value lines up vertically.
- Subtract the digits in each place value. Work from right to left starting with the ones place. If the digit on top is less than the digit below, borrow as needed.
- Continue subtracting each place value from right to left, borrowing if needed.
- Check by adding.

## Glossary

**difference**- The difference is the result of subtracting two or more numbers.

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