Addition with Regrouping: 45 + 19

Addition with Regrouping Calculator

What is 45 + 19?

Answer

45 + 19 =

64

With regrouping: 1 carry — into the tens

45 + 19 in a column. Carries are the small circled digits above the columns.
		1carry
		4	5
	+	1	9
		6	4

Column by column: 45 + 19

Ones: 5 + 9 = 14 — write 4, carry 1.
Tens: 4 + 1 + 1 = 6 — write 6.

45 + 19 = 64

Second check: 64 − 45 = 19

Similar examples to practise

Related Calculations

64 − 19 = 45 - 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 19

Example	Sum
19 + 19	38
23 + 19	42
26 + 19	45
28 + 19	47
34 + 19	53
36 + 19	55
39 + 19	58
41 + 19	60
45 + 19	64
47 + 19	66
52 + 19	71
54 + 19	73
58 + 19	77
63 + 19	82
65 + 19	84
67 + 19	86
69 + 19	88
71 + 19	90
74 + 19	93
76 + 19	95

FAQ

What is 45 + 19?

45 + 19 = 64

How do you check that 45 + 19 = 64?

Subtract one addend from the sum: 64 − 19 = 45, and 64 − 45 = 19. Getting the other addend back means the sum is right.

How many carries are there in 45 + 19?

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 19 + 45 the same as 45 + 19?

Yes. Addition is commutative, so both give 64; the column looks the same with either number on top.