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Subtraction with Regrouping: 70 − 23

Subtraction with Regrouping Calculator

What is 70 − 23?

Answer

70 − 23 =

47

With regrouping: 1 borrow — from the tens

70 − 23 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.
		6	+10
		7(was 7, now 6)	0 (was 0, now 10)
	−	2	3
		4	7

Column by column: 70 − 23

Ones: 0 is less than 3 — borrow 1 ten: tens 7 → 6; 10 − 3 = 7 — write 7.
Tens: after borrowing, 6; 6 − 2 = 4 — write 4.

70 − 23 = 47

Second check: 70 − 47 = 23

Similar examples to practise

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Related Calculations

47 + 23 = 70 - 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

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<a href="https://calculat.io/en/number/long-subtraction/70--23">70 − 23 = 47 - Subtraction with Regrouping - Calculatio</a>

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70 − 23 = 47 - Subtraction with Regrouping. 70 − 23 = 47. Subtraction with regrouping step by step: 1 borrow, every digit of the difference and an addition check.

https://calculat.io/en/number/long-subtraction/70--23/generated.jpg

Column subtractions of 23

Example	Difference
46 − 23	23
49 − 23	26
51 − 23	28
57 − 23	34
59 − 23	36
62 − 23	39
64 − 23	41
68 − 23	45
70 − 23	47
75 − 23	52
77 − 23	54
81 − 23	58
86 − 23	63
88 − 23	65
90 − 23	67
92 − 23	69
94 − 23	71
97 − 23	74
99 − 23	76
100 − 23	77

Recalculate with different values ↑

FAQ

What is 70 − 23?

70 − 23 = 47

How do you check that 70 − 23 = 47?

Add the difference and the subtrahend: 47 + 23 = 70. Getting the minuend back means the difference is right.

How many times do you borrow in 70 − 23?

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