Addition with Regrouping: 78 + 52

Addition with Regrouping Calculator

What is 78 + 52?

Answer

78 + 52 =

130

The sum is longer than the addends: 2 carries — into the tens and the hundreds; the last one makes a new digit

78 + 52 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			7	8
	+		5	2
		1	3	0

Column by column: 78 + 52

Ones: 8 + 2 = 10 — write 0, carry 1.
Tens: 7 + 5 + 1 = 13 — write 3, carry 1.
Hundreds: the carried 1 — write 1.

78 + 52 = 130

Second check: 130 − 78 = 52

Similar examples to practise

Related Calculations

130 − 52 = 78 - 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 52

Example	Sum
52 + 52	104
54 + 52	106
58 + 52	110
63 + 52	115
65 + 52	117
67 + 52	119
69 + 52	121
71 + 52	123
74 + 52	126
76 + 52	128
78 + 52	130
83 + 52	135
85 + 52	137
89 + 52	141
92 + 52	144
94 + 52	146
98 + 52	150
105 + 52	157
136 + 52	188
172 + 52	224

FAQ

What is 78 + 52?

78 + 52 = 130

How do you check that 78 + 52 = 130?

Subtract one addend from the sum: 130 − 52 = 78, and 130 − 78 = 52. Getting the other addend back means the sum is right.

How many carries are there in 78 + 52?

2 carries: 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 52 + 78 the same as 78 + 52?

Yes. Addition is commutative, so both give 130; the column looks the same with either number on top.

See Also