Column Subtraction: 86 − 15

Subtraction with Regrouping Calculator

What is 86 − 15?

Answer

86 − 15 =

71

No regrouping: each column is subtracted on its own

86 − 15 in a column. No borrowing.
		8	6
	−	1	5
		7	1

Column by column: 86 − 15

Ones: 6 − 5 = 1 — write 1.
Tens: 8 − 1 = 7 — write 7.

86 − 15 = 71

Second check: 86 − 71 = 15

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Related Calculations

71 + 15 = 86 - 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 15

Example	Difference
56 − 15	41
60 − 15	45
62 − 15	47
67 − 15	52
69 − 15	54
73 − 15	58
78 − 15	63
80 − 15	65
82 − 15	67
84 − 15	69
86 − 15	71
89 − 15	74
91 − 15	76
93 − 15	78
98 − 15	83
100 − 15	85
104 − 15	89
107 − 15	92
109 − 15	94
113 − 15	98

FAQ

What is 86 − 15?

86 − 15 = 71

How do you check that 86 − 15 = 71?

Add the difference and the subtrahend: 71 + 15 = 86. Getting the minuend back means the difference is right.

How many times do you borrow in 86 − 15?

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

See Also