Addition with Regrouping: 348 + 172

Addition with Regrouping Calculator
First addend
Second addend

What is 348 + 172?

Answer

348 + 172 =
520

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

348 + 172 in a column. Carries are the small circled digits above the columns.
1carry1carry
3 4 8
+172
520

Column by column: 348 + 172

  • Ones: 8 + 2 = 10 — write 0, carry 1.
  • Tens: 4 + 7 + 1 = 12 — write 2, carry 1.
  • Hundreds: 3 + 1 + 1 = 5 — write 5.

348 + 172 = 520

Second check: 520 − 348 = 172

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Column additions with 172

ExampleSum
172 + 172344
187 + 172359
203 + 172375
214 + 172386
239 + 172411
256 + 172428
268 + 172440
291 + 172463
307 + 172479
325 + 172497
348 + 172520
354 + 172526
376 + 172548
389 + 172561
402 + 172574
427 + 172599
453 + 172625
468 + 172640
485 + 172657
519 + 172691

FAQ

What is 348 + 172?

348 + 172 = 520

How do you check that 348 + 172 = 520?

Subtract one addend from the sum: 520 − 172 = 348, and 520 − 348 = 172. Getting the other addend back means the sum is right.

How many carries are there in 348 + 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 + 348 the same as 348 + 172?

Yes. Addition is commutative, so both give 520; the column looks the same with either number on top.

See Also