Subtraction with Regrouping: 300 − 76

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 300 − 76?

Answer

300 − 76 =
224

With regrouping across a zero: 2 borrows — there are no tens to borrow from, so 1 hundred becomes 10 tens, and 1 ten goes to the ones

300 − 76 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.
29+10
3(was 3, now 2)0(was 0, now 9)0 (was 0, now 10)
−76
224

Column by column: 300 − 76

  • Ones: 0 is less than 6 — borrow 1 hundred across the zero: hundreds 3 → 2, tens 0 → 9; 10 − 6 = 4 — write 4.
  • Tens: after borrowing, 9; 9 − 7 = 2 — write 2.
  • Hundreds: after borrowing, 2; nothing to subtract — write 2.

300 − 76 = 224

Second check: 300 − 224 = 76

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Column subtractions of 76

ExampleDifference
161 − 7685
165 − 7689
168 − 7692
170 − 7694
174 − 7698
181 − 76105
200 − 76124
212 − 76136
248 − 76172
279 − 76203
300 − 76224
315 − 76239
344 − 76268
383 − 76307
424 − 76348
452 − 76376
478 − 76402
529 − 76453
561 − 76485
612 − 76536

FAQ

What is 300 − 76?

300 − 76 = 224

How do you check that 300 − 76 = 224?

Add the difference and the subtrahend: 224 + 76 = 300. Getting the minuend back means the difference is right.

How many times do you borrow in 300 − 76?

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

Why does 0 become 9 when borrowing in 300 − 76?

The zero has nothing to lend, so it first borrows 1 from its left neighbour and becomes 10; then it lends 1 to the column on its right and keeps 9.

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