Column Subtraction: 99 − 45

Subtraction with Regrouping Calculator

What is 99 − 45?

Answer

99 − 45 =

54

No regrouping: each column is subtracted on its own

99 − 45 in a column. No borrowing.
		9	9
	−	4	5
		5	4

Column by column: 99 − 45

Ones: 9 − 5 = 4 — write 4.
Tens: 9 − 4 = 5 — write 5.

99 − 45 = 54

Second check: 99 − 54 = 45

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Related Calculations

54 + 45 = 99 - 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 45

Example	Difference
90 − 45	45
92 − 45	47
97 − 45	52
99 − 45	54
103 − 45	58
108 − 45	63
110 − 45	65
112 − 45	67
114 − 45	69
116 − 45	71
119 − 45	74
121 − 45	76
123 − 45	78
128 − 45	83
130 − 45	85
134 − 45	89
137 − 45	92
139 − 45	94
143 − 45	98
150 − 45	105

FAQ

What is 99 − 45?

99 − 45 = 54

How do you check that 99 − 45 = 54?

Add the difference and the subtrahend: 54 + 45 = 99. Getting the minuend back means the difference is right.

How many times do you borrow in 99 − 45?

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

See Also