Column Subtraction: 417 − 15

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 417 − 15?

Answer

417 − 15 =
402

No regrouping: each column is subtracted on its own

417 − 15 in a column. No borrowing.
4 1 7
−15
402

Column by column: 417 − 15

  • Ones: 7 − 5 = 2 — write 2.
  • Tens: 1 − 1 = 0 — write 0.
  • Hundreds: nothing to subtract — write 4.

417 − 15 = 402

Second check: 417 − 402 = 15

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FAQ

What is 417 − 15?

417 − 15 = 402

How do you check that 417 − 15 = 402?

Add the difference and the subtrahend: 402 + 15 = 417. Getting the minuend back means the difference is right.

How many times do you borrow in 417 − 15?

Not once: every top digit is at least as large as the digit below it.