Addition with Regrouping: 307 + 28

Addition with Regrouping Calculator

What is 307 + 28?

Answer

307 + 28 =

335

With regrouping: 1 carry — into the tens

307 + 28 in a column. Carries are the small circled digits above the columns.
			1carry
		3	0	7
	+		2	8
		3	3	5

Column by column: 307 + 28

Ones: 7 + 8 = 15 — write 5, carry 1.
Tens: 0 + 2 + 1 = 3 — write 3.
Hundreds: nothing to add — write 3.

307 + 28 = 335

Second check: 335 − 307 = 28

Similar examples to practise

Related Calculations

335 − 28 = 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 28

Example	Sum
92 + 28	120
94 + 28	122
98 + 28	126
105 + 28	133
136 + 28	164
172 + 28	200
203 + 28	231
239 + 28	267
268 + 28	296
272 + 28	300
307 + 28	335
348 + 28	376
372 + 28	400
376 + 28	404
402 + 28	430
453 + 28	481
472 + 28	500
485 + 28	513
536 + 28	564
572 + 28	600

FAQ

What is 307 + 28?

307 + 28 = 335

How do you check that 307 + 28 = 335?

Subtract one addend from the sum: 335 − 28 = 307, and 335 − 307 = 28. Getting the other addend back means the sum is right.

How many carries are there in 307 + 28?

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 28 + 307 the same as 307 + 28?

Yes. Addition is commutative, so both give 335; the column looks the same with either number on top.

See Also