tfarrejfm
Stage 9 of 20

Two-Digit Minus Single (No Borrow)

Subtract from the ones place directly when the top ones digit is large enough. This stage strengthens place value while keeping the operation simple.

What You'll Learn

  • Subtract a single digit from the ones place only
  • Keep the tens digit unchanged when no borrowing is needed
  • Verify answers using addition

Explanation

For 58 − 3: subtract 3 from the ones digit. 8 − 3 = 5. Tens stay at 5. Answer: 55.

Think addition-back: "3 plus what equals 8?" Answer 5, so 58 − 3 = 55.

The tens digit is untouched because you are only removing a small amount from the ones.

Estimate first: 58 − 3 should be close to 58 − 0 = 58, but a bit less. 55 makes sense.

Pro Tips

  • • If the ones digit of the minuend is 5 or greater, borrowing is usually unnecessary for single-digit subtrahends.
  • • Use counting back in ones: 58, 57, 56, 55.
  • • Check: 55 + 3 = 58 confirms your answer.

Practice Exercises

Work through each problem mentally. Click "Show Answer" when you're ready to check.

  1. 1. 58 − 3 = ?
  2. 2. 76 − 4 = ?
  3. 3. 49 − 5 = ?
  4. 4. 67 − 2 = ?
  5. 5. 83 − 6 = ?
  6. 6. 95 − 3 = ?
  7. 7. 54 − 1 = ?
  8. 8. 71 − 5 = ?
  9. 9. 88 − 7 = ?
  10. 10. 62 − 4 = ?