Addition with Regrouping: 39 + 34

Addition with Regrouping Calculator

What is 39 + 34?

Answer

39 + 34 =

73

With regrouping: 1 carry — into the tens

39 + 34 in a column. Carries are the small circled digits above the columns.
		1carry
		3	9
	+	3	4
		7	3

Column by column: 39 + 34

Ones: 9 + 4 = 13 — write 3, carry 1.
Tens: 3 + 3 + 1 = 7 — write 7.

39 + 34 = 73

Second check: 73 − 39 = 34

Similar examples to practise

Related Calculations

73 − 34 = 39 - 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 34

Example	Sum
34 + 34	68
36 + 34	70
39 + 34	73
41 + 34	75
45 + 34	79
47 + 34	81
52 + 34	86
54 + 34	88
58 + 34	92
63 + 34	97
65 + 34	99
67 + 34	101
69 + 34	103
71 + 34	105
74 + 34	108
76 + 34	110
78 + 34	112
83 + 34	117
85 + 34	119
89 + 34	123

FAQ

What is 39 + 34?

39 + 34 = 73

How do you check that 39 + 34 = 73?

Subtract one addend from the sum: 73 − 34 = 39, and 73 − 39 = 34. Getting the other addend back means the sum is right.

How many carries are there in 39 + 34?

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 34 + 39 the same as 39 + 34?

Yes. Addition is commutative, so both give 73; the column looks the same with either number on top.