Subtraction with Regrouping: 874 − 389

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 874 − 389?

Answer

874 − 389 =
485

With regrouping: 2 borrows — from the tens and the hundreds

874 − 389 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.
716+10
8(was 8, now 7)7(was 7, now 16)4 (was 4, now 14)
−389
485

Column by column: 874 − 389

  • Ones: 4 is less than 9 — borrow 1 ten: tens 7 → 6; 14 − 9 = 5 — write 5.
  • Tens: after borrowing, 6; 6 is less than 8 — borrow 1 hundred: hundreds 8 → 7; 16 − 8 = 8 — write 8.
  • Hundreds: after borrowing, 7; 7 − 3 = 4 — write 4.

874 − 389 = 485

Second check: 874 − 485 = 389

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Column subtractions of 389

ExampleDifference
869 − 389480
870 − 389481
871 − 389482
872 − 389483
873 − 389484
874 − 389485
875 − 389486
876 − 389487
877 − 389488
878 − 389489
879 − 389490

FAQ

What is 874 − 389?

874 − 389 = 485

How do you check that 874 − 389 = 485?

Add the difference and the subtrahend: 485 + 389 = 874. Getting the minuend back means the difference is right.

How many times do you borrow in 874 − 389?

2 borrows: 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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