Addition with Regrouping: 63 + 45

Addition with Regrouping Calculator

What is 63 + 45?

Answer

63 + 45 =

108

The sum is longer than the addends: 1 carry — into the hundreds; the last one makes a new digit

63 + 45 in a column. Carries are the small circled digits above the columns.
		1carry
			6	3
	+		4	5
		1	0	8

Column by column: 63 + 45

Ones: 3 + 5 = 8 — write 8.
Tens: 6 + 4 = 10 — write 0, carry 1.
Hundreds: the carried 1 — write 1.

63 + 45 = 108

Second check: 108 − 63 = 45

Similar examples to practise

Related Calculations

108 − 45 = 63 - Subtraction with Regrouping

See Also

Subtraction with Regrouping Calculator - Column subtraction step by step, with borrowing across zeros
Long Multiplication Calculator - Column multiplication with partial products, step by step
Long Division Calculator - Step-by-step long division with detailed explanation
Adding Fractions Calculator - Add fractions, mixed numbers and whole numbers step by step

Recalculate with different values ↑

Column additions with 45

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

FAQ

What is 63 + 45?

63 + 45 = 108

How do you check that 63 + 45 = 108?

Subtract one addend from the sum: 108 − 45 = 63, and 108 − 63 = 45. Getting the other addend back means the sum is right.

How many carries are there in 63 + 45?

1 carry: every time a column added up to 10 or more, its ones digit was written and 1 was carried to the next column on the left.

Is 45 + 63 the same as 63 + 45?

Yes. Addition is commutative, so both give 108; the column looks the same with either number on top.

See Also