Addition with Regrouping: 89 + 34

Addition with Regrouping Calculator

What is 89 + 34?

Answer

89 + 34 =

123

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

89 + 34 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			8	9
	+		3	4
		1	2	3

Column by column: 89 + 34

Ones: 9 + 4 = 13 — write 3, carry 1.
Tens: 8 + 3 + 1 = 12 — write 2, carry 1.
Hundreds: the carried 1 — write 1.

89 + 34 = 123

Second check: 123 − 89 = 34

Similar examples to practise

Related Calculations

123 − 34 = 89 - 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
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
92 + 34	126
94 + 34	128
98 + 34	132
105 + 34	139
136 + 34	170
172 + 34	206
203 + 34	237
239 + 34	273
268 + 34	302

FAQ

What is 89 + 34?

89 + 34 = 123

How do you check that 89 + 34 = 123?

Subtract one addend from the sum: 123 − 34 = 89, and 123 − 89 = 34. Getting the other addend back means the sum is right.

How many carries are there in 89 + 34?

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 34 + 89 the same as 89 + 34?

Yes. Addition is commutative, so both give 123; the column looks the same with either number on top.

See Also