Addition with Regrouping: 307 + 23

Addition with Regrouping Calculator

What is 307 + 23?

Answer

307 + 23 =

330

With regrouping: 1 carry — into the tens

307 + 23 in a column. Carries are the small circled digits above the columns.
			1carry
		3	0	7
	+		2	3
		3	3	0

Column by column: 307 + 23

Ones: 7 + 3 = 10 — write 0, carry 1.
Tens: 0 + 2 + 1 = 3 — write 3.
Hundreds: nothing to add — write 3.

307 + 23 = 330

Second check: 330 − 307 = 23

Similar examples to practise

Related Calculations

330 − 23 = 307 - 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 23

Example	Sum
94 + 23	117
98 + 23	121
105 + 23	128
136 + 23	159
172 + 23	195
177 + 23	200
203 + 23	226
239 + 23	262
268 + 23	291
277 + 23	300
307 + 23	330
348 + 23	371
376 + 23	399
402 + 23	425
453 + 23	476
485 + 23	508
536 + 23	559
578 + 23	601
647 + 23	670
677 + 23	700

FAQ

What is 307 + 23?

307 + 23 = 330

How do you check that 307 + 23 = 330?

Subtract one addend from the sum: 330 − 23 = 307, and 330 − 307 = 23. Getting the other addend back means the sum is right.

How many carries are there in 307 + 23?

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 23 + 307 the same as 307 + 23?

Yes. Addition is commutative, so both give 330; the column looks the same with either number on top.

See Also