Subtraction with Regrouping: 315 − 47

Subtraction with Regrouping Calculator

What is 315 − 47?

Answer

315 − 47 =

268

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

315 − 47 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.
		2	10	+10
		3(was 3, now 2)	1(was 1, now 10)	5 (was 5, now 15)
	−		4	7
		2	6	8

Column by column: 315 − 47

Ones: 5 is less than 7 — borrow 1 ten: tens 1 → 0; 15 − 7 = 8 — write 8.
Tens: after borrowing, 0; 0 is less than 4 — borrow 1 hundred: hundreds 3 → 2; 10 − 4 = 6 — write 6.
Hundreds: after borrowing, 2; nothing to subtract — write 2.

315 − 47 = 268

Second check: 315 − 268 = 47

Similar examples to practise

Related Calculations

268 + 47 = 315 - 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 47

Example	Difference
139 − 47	92
141 − 47	94
145 − 47	98
152 − 47	105
183 − 47	136
200 − 47	153
219 − 47	172
250 − 47	203
286 − 47	239
300 − 47	253
315 − 47	268
354 − 47	307
395 − 47	348
400 − 47	353
423 − 47	376
449 − 47	402
500 − 47	453
532 − 47	485
583 − 47	536
600 − 47	553

FAQ

What is 315 − 47?

315 − 47 = 268

How do you check that 315 − 47 = 268?

Add the difference and the subtrahend: 268 + 47 = 315. Getting the minuend back means the difference is right.

How many times do you borrow in 315 − 47?

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

See Also