Subtraction with Regrouping: 324 − 17

Subtraction with Regrouping Calculator

What is 324 − 17?

Answer

324 − 17 =

307

With regrouping: 1 borrow — from the tens

324 − 17 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.
			1	+10
		3	2(was 2, now 1)	4 (was 4, now 14)
	−		1	7
		3	0	7

Column by column: 324 − 17

Ones: 4 is less than 7 — borrow 1 ten: tens 2 → 1; 14 − 7 = 7 — write 7.
Tens: after borrowing, 1; 1 − 1 = 0 — write 0.
Hundreds: nothing to subtract — write 3.

324 − 17 = 307

Second check: 324 − 307 = 17

Similar examples to practise

Related Calculations

307 + 17 = 324 - Addition with Regrouping

See Also

Addition with Regrouping Calculator - Column addition step by step, with every carry
Long Division Calculator - Step-by-step long division with detailed explanation
Long Multiplication Calculator - Column multiplication with partial products, step by step
Subtracting Fractions Calculator - Subtract fractions, mixed numbers and whole numbers step by step

Recalculate with different values ↑

Column subtractions of 17

Example	Difference
109 − 17	92
111 − 17	94
115 − 17	98
122 − 17	105
153 − 17	136
189 − 17	172
200 − 17	183
220 − 17	203
256 − 17	239
285 − 17	268
300 − 17	283
324 − 17	307
365 − 17	348
393 − 17	376
419 − 17	402
470 − 17	453
502 − 17	485
553 − 17	536
595 − 17	578
664 − 17	647

FAQ

What is 324 − 17?

324 − 17 = 307

How do you check that 324 − 17 = 307?

Add the difference and the subtrahend: 307 + 17 = 324. Getting the minuend back means the difference is right.

How many times do you borrow in 324 − 17?

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

See Also