Subtraction with Regrouping: 73 − 28

Subtraction with Regrouping Calculator

What is 73 − 28?

Answer

73 − 28 =

45

With regrouping: 1 borrow — from the tens

73 − 28 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)	3 (was 3, now 13)
	−	2	8
		4	5

Column by column: 73 − 28

Ones: 3 is less than 8 — borrow 1 ten: tens 7 → 6; 13 − 8 = 5 — write 5.
Tens: after borrowing, 6; 6 − 2 = 4 — write 4.

73 − 28 = 45

Second check: 73 − 45 = 28

Similar examples to practise

Related Calculations

45 + 28 = 73 - 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 28

Example	Difference
56 − 28	28
62 − 28	34
64 − 28	36
67 − 28	39
69 − 28	41
73 − 28	45
75 − 28	47
80 − 28	52
82 − 28	54
86 − 28	58
91 − 28	63
93 − 28	65
95 − 28	67
97 − 28	69
99 − 28	71
100 − 28	72
102 − 28	74
104 − 28	76
106 − 28	78
111 − 28	83

FAQ

What is 73 − 28?

73 − 28 = 45

How do you check that 73 − 28 = 45?

Add the difference and the subtrahend: 45 + 28 = 73. Getting the minuend back means the difference is right.

How many times do you borrow in 73 − 28?

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