Addition with Regrouping: 268 + 172

Addition with Regrouping Calculator

What is 268 + 172?

Answer

268 + 172 =

440

With regrouping: 2 carries — into the tens and the hundreds

268 + 172 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
		2	6	8
	+	1	7	2
		4	4	0

Column by column: 268 + 172

Ones: 8 + 2 = 10 — write 0, carry 1.
Tens: 6 + 7 + 1 = 14 — write 4, carry 1.
Hundreds: 2 + 1 + 1 = 4 — write 4.

268 + 172 = 440

Second check: 440 − 268 = 172

Similar examples to practise

Related Calculations

440 − 172 = 268 - 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 172

Example	Sum
172 + 172	344
187 + 172	359
203 + 172	375
214 + 172	386
239 + 172	411
256 + 172	428
268 + 172	440
291 + 172	463
307 + 172	479
325 + 172	497
348 + 172	520
354 + 172	526
376 + 172	548
389 + 172	561
402 + 172	574
427 + 172	599
453 + 172	625
468 + 172	640
485 + 172	657
519 + 172	691

FAQ

What is 268 + 172?

268 + 172 = 440

How do you check that 268 + 172 = 440?

Subtract one addend from the sum: 440 − 172 = 268, and 440 − 268 = 172. Getting the other addend back means the sum is right.

How many carries are there in 268 + 172?

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 172 + 268 the same as 268 + 172?

Yes. Addition is commutative, so both give 440; the column looks the same with either number on top.

See Also