Subtraction with Regrouping: 291 − 23

Subtraction with Regrouping Calculator

What is 291 − 23?

Answer

291 − 23 =

268

With regrouping: 1 borrow — from the tens

291 − 23 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.
			8	+10
		2	9(was 9, now 8)	1 (was 1, now 11)
	−		2	3
		2	6	8

Column by column: 291 − 23

Ones: 1 is less than 3 — borrow 1 ten: tens 9 → 8; 11 − 3 = 8 — write 8.
Tens: after borrowing, 8; 8 − 2 = 6 — write 6.
Hundreds: nothing to subtract — write 2.

291 − 23 = 268

Second check: 291 − 268 = 23

Similar examples to practise

Related Calculations

268 + 23 = 291 - 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 23

Example	Difference
112 − 23	89
115 − 23	92
117 − 23	94
121 − 23	98
128 − 23	105
159 − 23	136
195 − 23	172
200 − 23	177
226 − 23	203
262 − 23	239
291 − 23	268
300 − 23	277
330 − 23	307
371 − 23	348
399 − 23	376
425 − 23	402
476 − 23	453
508 − 23	485
559 − 23	536
601 − 23	578

FAQ

What is 291 − 23?

291 − 23 = 268

How do you check that 291 − 23 = 268?

Add the difference and the subtrahend: 268 + 23 = 291. Getting the minuend back means the difference is right.

How many times do you borrow in 291 − 23?

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