Subtraction with Regrouping: 181 − 89

Subtraction with Regrouping Calculator

What is 181 − 89?

Answer

181 − 89 =

92

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

181 − 89 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.
		0	17	+10
		1(was 1, now 0)	8(was 8, now 17)	1 (was 1, now 11)
	−		8	9
			9	2

Column by column: 181 − 89

Ones: 1 is less than 9 — borrow 1 ten: tens 8 → 7; 11 − 9 = 2 — write 2.
Tens: after borrowing, 7; 7 is less than 8 — borrow 1 hundred: hundreds 1 → 0; 17 − 8 = 9 — write 9.
Hundreds: after borrowing, 0 — a leading zero is not written.

181 − 89 = 92

Second check: 181 − 92 = 89

Similar examples to practise

Related Calculations

92 + 89 = 181 - 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 89

Example	Difference
178 − 89	89
181 − 89	92
183 − 89	94
187 − 89	98
194 − 89	105
200 − 89	111
225 − 89	136
261 − 89	172
292 − 89	203
300 − 89	211
328 − 89	239
357 − 89	268
396 − 89	307
437 − 89	348
465 − 89	376
491 − 89	402
542 − 89	453
574 − 89	485
625 − 89	536
667 − 89	578

FAQ

What is 181 − 89?

181 − 89 = 92

How do you check that 181 − 89 = 92?

Add the difference and the subtrahend: 92 + 89 = 181. Getting the minuend back means the difference is right.

How many times do you borrow in 181 − 89?

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