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Addition with Regrouping: 105 + 45

Addition with Regrouping Calculator

What is 105 + 45?

Answer

105 + 45 =

150

With regrouping: 1 carry — into the tens

105 + 45 in a column. Carries are the small circled digits above the columns.
			1carry
		1	0	5
	+		4	5
		1	5	0

Column by column: 105 + 45

Ones: 5 + 5 = 10 — write 0, carry 1.
Tens: 0 + 4 + 1 = 5 — write 5.
Hundreds: nothing to add — write 1.

105 + 45 = 150

Second check: 150 − 105 = 45

Similar examples to practise

Found an error in the calculation or the information?

Related Calculations

150 − 45 = 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

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105 + 45 = 150 - Addition with Regrouping. 105 + 45 = 150. Addition with regrouping step by step: 1 carry, every digit of the sum and a subtraction check.

https://calculat.io/en/number/long-addition/105--45/generated.jpg

Column additions with 45

Example	Sum
71 + 45	116
74 + 45	119
76 + 45	121
78 + 45	123
83 + 45	128
85 + 45	130
89 + 45	134
92 + 45	137
94 + 45	139
98 + 45	143
105 + 45	150
136 + 45	181
172 + 45	217
203 + 45	248
239 + 45	284
268 + 45	313
307 + 45	352
348 + 45	393
376 + 45	421
402 + 45	447

Recalculate with different values ↑

FAQ

What is 105 + 45?

105 + 45 = 150

How do you check that 105 + 45 = 150?

Subtract one addend from the sum: 150 − 45 = 105, and 150 − 105 = 45. Getting the other addend back means the sum is right.

How many carries are there in 105 + 45?

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 45 + 105 the same as 105 + 45?

Yes. Addition is commutative, so both give 150; the column looks the same with either number on top.

See Also