Column Subtraction: 27 − 12

Subtraction with Regrouping Calculator

What is 27 − 12?

Answer

27 − 12 =

15

No regrouping: each column is subtracted on its own

27 − 12 in a column. No borrowing.
		2	7
	−	1	2
		1	5

Column by column: 27 − 12

Ones: 7 − 2 = 5 — write 5.
Tens: 2 − 1 = 1 — write 1.

27 − 12 = 15

Second check: 27 − 15 = 12

Similar examples to practise

Related Calculations

15 + 12 = 27 - Column Addition

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
24 − 12	12
27 − 12	15
29 − 12	17
31 − 12	19
35 − 12	23
38 − 12	26
40 − 12	28
46 − 12	34
48 − 12	36
51 − 12	39
53 − 12	41
57 − 12	45
59 − 12	47
64 − 12	52
66 − 12	54
70 − 12	58
75 − 12	63
77 − 12	65
79 − 12	67
81 − 12	69

FAQ

What is 27 − 12?

27 − 12 = 15

How do you check that 27 − 12 = 15?

Add the difference and the subtrahend: 15 + 12 = 27. Getting the minuend back means the difference is right.

How many times do you borrow in 27 − 12?

Not once: every top digit is at least as large as the digit below it.

See Also