Addition with Regrouping: 105 + 65

Addition with Regrouping Calculator

What is 105 + 65?

Answer

105 + 65 =

170

With regrouping: 1 carry — into the tens

105 + 65 in a column. Carries are the small circled digits above the columns.
			1carry
		1	0	5
	+		6	5
		1	7	0

Column by column: 105 + 65

Ones: 5 + 5 = 10 — write 0, carry 1.
Tens: 0 + 6 + 1 = 7 — write 7.
Hundreds: nothing to add — write 1.

105 + 65 = 170

Second check: 170 − 105 = 65

Similar examples to practise

Related Calculations

170 − 65 = 105 - 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 65

Example	Sum
71 + 65	136
74 + 65	139
76 + 65	141
78 + 65	143
83 + 65	148
85 + 65	150
89 + 65	154
92 + 65	157
94 + 65	159
98 + 65	163
105 + 65	170
136 + 65	201
172 + 65	237
203 + 65	268
239 + 65	304
268 + 65	333
307 + 65	372
348 + 65	413
376 + 65	441
402 + 65	467

FAQ

What is 105 + 65?

105 + 65 = 170

How do you check that 105 + 65 = 170?

Subtract one addend from the sum: 170 − 65 = 105, and 170 − 105 = 65. Getting the other addend back means the sum is right.

How many carries are there in 105 + 65?

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 65 + 105 the same as 105 + 65?

Yes. Addition is commutative, so both give 170; the column looks the same with either number on top.

See Also