Subtraction with Regrouping: 1,249 − 602

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,249 − 602?

Answer

1,249 − 602 =
647

With regrouping: 1 borrow — from the thousands

1,249 − 602 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.
0+10
1(was 1, now 0)2 (was 2, now 12)4 9
−602
647

Column by column: 1,249 − 602

  • Ones: 9 − 2 = 7 — write 7.
  • Tens: 4 − 0 = 4 — write 4.
  • Hundreds: 2 is less than 6 — borrow 1 thousand: thousands 1 → 0; 12 − 6 = 6 — write 6.
  • Thousands: after borrowing, 0 — a leading zero is not written.

1,249 − 602 = 647

Second check: 1,249 − 647 = 602

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Column subtractions of 602

ExampleDifference
1,244 − 602642
1,245 − 602643
1,246 − 602644
1,247 − 602645
1,248 − 602646
1,249 − 602647
1,250 − 602648
1,251 − 602649
1,252 − 602650
1,253 − 602651
1,254 − 602652

FAQ

What is 1,249 − 602?

1,249 − 602 = 647

How do you check that 1,249 − 602 = 647?

Add the difference and the subtrahend: 647 + 602 = 1,249. Getting the minuend back means the difference is right.

How many times do you borrow in 1,249 − 602?

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

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