Subtraction with Regrouping: 1,111,110 − 123,456

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 1,111,110 − 123,456?

Answer

1,111,110 − 123,456 =
987,654

With regrouping: 6 borrows — from the tens, the hundreds, the thousands, the ten thousands, the hundred thousands and the millions

1,111,110 − 123,456 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.
01010101010+10
1(was 1, now 0)1(was 1, now 10)1(was 1, now 10)1(was 1, now 10)1(was 1, now 10)1(was 1, now 10)0 (was 0, now 10)
−123456
987654

Column by column: 1,111,110 − 123,456

  • Ones: 0 is less than 6 — borrow 1 ten: tens 1 → 0; 10 − 6 = 4 — write 4.
  • Tens: after borrowing, 0; 0 is less than 5 — borrow 1 hundred: hundreds 1 → 0; 10 − 5 = 5 — write 5.
  • Hundreds: after borrowing, 0; 0 is less than 4 — borrow 1 thousand: thousands 1 → 0; 10 − 4 = 6 — write 6.
  • Thousands: after borrowing, 0; 0 is less than 3 — borrow 1 ten thousand: ten thousands 1 → 0; 10 − 3 = 7 — write 7.
  • Ten thousands: after borrowing, 0; 0 is less than 2 — borrow 1 hundred thousand: hundred thousands 1 → 0; 10 − 2 = 8 — write 8.
  • Hundred thousands: after borrowing, 0; 0 is less than 1 — borrow 1 million: millions 1 → 0; 10 − 1 = 9 — write 9.
  • Millions: after borrowing, 0 — a leading zero is not written.

1,111,110 − 123,456 = 987,654

Second check: 1,111,110 − 987,654 = 123,456

See Also

Column subtractions of 123,456

ExampleDifference
1,111,105 − 123,456987,649
1,111,106 − 123,456987,650
1,111,107 − 123,456987,651
1,111,108 − 123,456987,652
1,111,109 − 123,456987,653
1,111,110 − 123,456987,654
1,111,111 − 123,456987,655
1,111,112 − 123,456987,656
1,111,113 − 123,456987,657
1,111,114 − 123,456987,658
1,111,115 − 123,456987,659

FAQ

What is 1,111,110 − 123,456?

1,111,110 − 123,456 = 987,654

How do you check that 1,111,110 − 123,456 = 987,654?

Add the difference and the subtrahend: 987,654 + 123,456 = 1,111,110. Getting the minuend back means the difference is right.

How many times do you borrow in 1,111,110 − 123,456?

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