Addition with Regrouping: 28 + 19

Addition with Regrouping Calculator

What is 28 + 19?

Answer

28 + 19 =

47

With regrouping: 1 carry — into the tens

28 + 19 in a column. Carries are the small circled digits above the columns.
		1carry
		2	8
	+	1	9
		4	7

Column by column: 28 + 19

Ones: 8 + 9 = 17 — write 7, carry 1.
Tens: 2 + 1 + 1 = 4 — write 4.

28 + 19 = 47

Second check: 47 − 28 = 19

Similar examples to practise

Related Calculations

47 − 19 = 28 - 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 28 + 19?

28 + 19 = 47

How do you check that 28 + 19 = 47?

Subtract one addend from the sum: 47 − 19 = 28, and 47 − 28 = 19. Getting the other addend back means the sum is right.

How many carries are there in 28 + 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 + 28 the same as 28 + 19?

Yes. Addition is commutative, so both give 47; the column looks the same with either number on top.

See Also