Addition with Regrouping: 69 + 15

Addition with Regrouping Calculator

What is 69 + 15?

Answer

69 + 15 =

84

With regrouping: 1 carry — into the tens

69 + 15 in a column. Carries are the small circled digits above the columns.
		1carry
		6	9
	+	1	5
		8	4

Column by column: 69 + 15

Ones: 9 + 5 = 14 — write 4, carry 1.
Tens: 6 + 1 + 1 = 8 — write 8.

69 + 15 = 84

Second check: 84 − 69 = 15

Similar examples to practise

Related Calculations

84 − 15 = 69 - 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 15

Example	Sum
39 + 15	54
41 + 15	56
45 + 15	60
47 + 15	62
52 + 15	67
54 + 15	69
58 + 15	73
63 + 15	78
65 + 15	80
67 + 15	82
69 + 15	84
71 + 15	86
74 + 15	89
76 + 15	91
78 + 15	93
83 + 15	98
85 + 15	100
89 + 15	104
92 + 15	107
94 + 15	109

FAQ

What is 69 + 15?

69 + 15 = 84

How do you check that 69 + 15 = 84?

Subtract one addend from the sum: 84 − 15 = 69, and 84 − 69 = 15. Getting the other addend back means the sum is right.

How many carries are there in 69 + 15?

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 15 + 69 the same as 69 + 15?

Yes. Addition is commutative, so both give 84; the column looks the same with either number on top.

See Also