Subtracting Two Digit Numbers without Renaming
How to subtract two-digit numbers (for example 67 - 45).
- Place one number above the other so the tens' place digits and ones' place digits
are lined up. Draw a line under the bottom number.
- Subtract the bottom ones' place digit (5) from the top ones' place digit (7) and
place the difference (2) below the line in the ones' place column.
- Subtract the bottom tens' place digit (4) from the top tens' place digit (6).
Place the difference (2) below the line in the tens' place column.