Subtraction with Regrouping: 921 − 453

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 921 − 453?

Answer

921 − 453 =
468

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

921 − 453 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.
811+10
9(was 9, now 8)2(was 2, now 11)1 (was 1, now 11)
−453
468

Column by column: 921 − 453

  • Ones: 1 is less than 3 — borrow 1 ten: tens 2 → 1; 11 − 3 = 8 — write 8.
  • Tens: after borrowing, 1; 1 is less than 5 — borrow 1 hundred: hundreds 9 → 8; 11 − 5 = 6 — write 6.
  • Hundreds: after borrowing, 8; 8 − 4 = 4 — write 4.

921 − 453 = 468

Second check: 921 − 468 = 453

Similar examples to practise

See Also

Column subtractions of 453

ExampleDifference
916 − 453463
917 − 453464
918 − 453465
919 − 453466
920 − 453467
921 − 453468
922 − 453469
923 − 453470
924 − 453471
925 − 453472
926 − 453473

FAQ

What is 921 − 453?

921 − 453 = 468

How do you check that 921 − 453 = 468?

Add the difference and the subtrahend: 468 + 453 = 921. Getting the minuend back means the difference is right.

How many times do you borrow in 921 − 453?

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