Column Addition: 71 + 12

Addition with Regrouping Calculator

What is 71 + 12?

Answer

71 + 12 =

83

No regrouping: each column is added on its own

71 + 12 in a column. No carries.
		7	1
	+	1	2
		8	3

Column by column: 71 + 12

Ones: 1 + 2 = 3 — write 3.
Tens: 7 + 1 = 8 — write 8.

71 + 12 = 83

Second check: 83 − 71 = 12

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Related Calculations

83 − 12 = 71 - Column Subtraction

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 12

Example	Sum
41 + 12	53
45 + 12	57
47 + 12	59
52 + 12	64
54 + 12	66
58 + 12	70
63 + 12	75
65 + 12	77
67 + 12	79
69 + 12	81
71 + 12	83
74 + 12	86
76 + 12	88
78 + 12	90
83 + 12	95
85 + 12	97
88 + 12	100
89 + 12	101
92 + 12	104
94 + 12	106

FAQ

What is 71 + 12?

71 + 12 = 83

How do you check that 71 + 12 = 83?

Subtract one addend from the sum: 83 − 12 = 71, and 83 − 71 = 12. Getting the other addend back means the sum is right.

How many carries are there in 71 + 12?

None: no column adds up to 10 or more, so every digit of the sum is written straight away.

Is 12 + 71 the same as 71 + 12?

Yes. Addition is commutative, so both give 83; the column looks the same with either number on top.

See Also