Subtraction with Regrouping: 251 − 12

Subtraction with Regrouping Calculator

What is 251 − 12?

Answer

251 − 12 =

239

With regrouping: 1 borrow — from the tens

251 − 12 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.
			4	+10
		2	5(was 5, now 4)	1 (was 1, now 11)
	−		1	2
		2	3	9

Column by column: 251 − 12

Ones: 1 is less than 2 — borrow 1 ten: tens 5 → 4; 11 − 2 = 9 — write 9.
Tens: after borrowing, 4; 4 − 1 = 3 — write 3.
Hundreds: nothing to subtract — write 2.

251 − 12 = 239

Second check: 251 − 239 = 12

Similar examples to practise

Related Calculations

239 + 12 = 251 - 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 12

Example	Difference
100 − 12	88
101 − 12	89
104 − 12	92
106 − 12	94
110 − 12	98
117 − 12	105
148 − 12	136
184 − 12	172
200 − 12	188
215 − 12	203
251 − 12	239
280 − 12	268
300 − 12	288
319 − 12	307
360 − 12	348
388 − 12	376
400 − 12	388
414 − 12	402
465 − 12	453
497 − 12	485

FAQ

What is 251 − 12?

251 − 12 = 239

How do you check that 251 − 12 = 239?

Add the difference and the subtrahend: 239 + 12 = 251. Getting the minuend back means the difference is right.

How many times do you borrow in 251 − 12?

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