how can you efficiently subtract multi digit numbers (short answer)

1 answer

To efficiently subtract multi-digit numbers:

  1. Align the Numbers: Write the numbers vertically, aligning them by their place values (units, tens, hundreds, etc.).

  2. Subtract Right to Left: Start from the rightmost digit and move left, borrowing from the next higher place as needed.

  3. Borrow Correctly: If the top digit is smaller than the bottom digit, borrow 1 from the next column over, adding 10 to the current digit.

  4. Write the Result: After subtracting each column, write down the results directly below.

  5. Double-Check: Review the calculations to ensure accuracy.

Practice helps improve speed and efficiency!