Subtraction with Regrouping: 220 − 17

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 220 − 17?

Answer

220 − 17 =
203

With regrouping: 1 borrow — from the tens

220 − 17 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 2(was 2, now 1)0 (was 0, now 10)
−17
203

Column by column: 220 − 17

  • Ones: 0 is less than 7 — borrow 1 ten: tens 2 → 1; 10 − 7 = 3 — write 3.
  • Tens: after borrowing, 1; 1 − 1 = 0 — write 0.
  • Hundreds: nothing to subtract — write 2.

220 − 17 = 203

Second check: 220 − 203 = 17

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See Also

FAQ

What is 220 − 17?

220 − 17 = 203

How do you check that 220 − 17 = 203?

Add the difference and the subtrahend: 203 + 17 = 220. Getting the minuend back means the difference is right.

How many times do you borrow in 220 − 17?

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