Column Subtraction: 829 − 402

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 829 − 402?

Answer

829 − 402 =
427

No regrouping: each column is subtracted on its own

829 − 402 in a column. No borrowing.
8 2 9
−402
427

Column by column: 829 − 402

  • Ones: 9 − 2 = 7 — write 7.
  • Tens: 2 − 0 = 2 — write 2.
  • Hundreds: 8 − 4 = 4 — write 4.

829 − 402 = 427

Second check: 829 − 427 = 402

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FAQ

What is 829 − 402?

829 − 402 = 427

How do you check that 829 − 402 = 427?

Add the difference and the subtrahend: 427 + 402 = 829. Getting the minuend back means the difference is right.

How many times do you borrow in 829 − 402?

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