Subtraction with Regrouping: 121 − 52

Subtraction with Regrouping Calculator

What is 121 − 52?

Answer

121 − 52 =

69

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

121 − 52 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	11	+10
		1(was 1, now 0)	2(was 2, now 11)	1 (was 1, now 11)
	−		5	2
			6	9

Column by column: 121 − 52

Ones: 1 is less than 2 — borrow 1 ten: tens 2 → 1; 11 − 2 = 9 — write 9.
Tens: after borrowing, 1; 1 is less than 5 — borrow 1 hundred: hundreds 1 → 0; 11 − 5 = 6 — write 6.
Hundreds: after borrowing, 0 — a leading zero is not written.

121 − 52 = 69

Second check: 121 − 69 = 52

Similar examples to practise

Related Calculations

69 + 52 = 121 - 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 52

Example	Difference
104 − 52	52
106 − 52	54
110 − 52	58
115 − 52	63
117 − 52	65
119 − 52	67
121 − 52	69
123 − 52	71
126 − 52	74
128 − 52	76
130 − 52	78
135 − 52	83
137 − 52	85
141 − 52	89
144 − 52	92
146 − 52	94
150 − 52	98
157 − 52	105
188 − 52	136
224 − 52	172

FAQ

What is 121 − 52?

121 − 52 = 69

How do you check that 121 − 52 = 69?

Add the difference and the subtrahend: 69 + 52 = 121. Getting the minuend back means the difference is right.

How many times do you borrow in 121 − 52?

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