Subtraction with Regrouping: 237 − 65

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 237 − 65?

Answer

237 − 65 =
172

With regrouping: 1 borrow — from the hundreds

237 − 65 in a column. Above the columns: the values after borrowing — a crossed-out digit is replaced by the number above it; +10 marks a column that received a borrowed ten.
1+10
2(was 2, now 1)3 (was 3, now 13)7
−65
172

Column by column: 237 − 65

  • Ones: 7 − 5 = 2 — write 2.
  • Tens: 3 is less than 6 — borrow 1 hundred: hundreds 2 → 1; 13 − 6 = 7 — write 7.
  • Hundreds: after borrowing, 1; nothing to subtract — write 1.

237 − 65 = 172

Second check: 237 − 172 = 65

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FAQ

What is 237 − 65?

237 − 65 = 172

How do you check that 237 − 65 = 172?

Add the difference and the subtrahend: 172 + 65 = 237. Getting the minuend back means the difference is right.

How many times do you borrow in 237 − 65?

1 borrow: each time the top digit was smaller than the one below it, 1 was borrowed from the column on the left.