Addition with Regrouping: 268 + 128

Addition with Regrouping Calculator
First addend
Second addend

What is 268 + 128?

Answer

268 + 128 =
396

With regrouping: 1 carry — into the tens

268 + 128 in a column. Carries are the small circled digits above the columns.
1carry
2 6 8
+128
396

Column by column: 268 + 128

  • Ones: 8 + 8 = 16 — write 6, carry 1.
  • Tens: 6 + 2 + 1 = 9 — write 9.
  • Hundreds: 2 + 1 = 3 — write 3.

268 + 128 = 396

Second check: 396 − 268 = 128

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Column additions with 128

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128 + 128256
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149 + 128277
172 + 128300
187 + 128315
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214 + 128342
239 + 128367
256 + 128384
268 + 128396
291 + 128419
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325 + 128453
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354 + 128482
376 + 128504
389 + 128517
402 + 128530
427 + 128555
453 + 128581

FAQ

What is 268 + 128?

268 + 128 = 396

How do you check that 268 + 128 = 396?

Subtract one addend from the sum: 396 − 128 = 268, and 396 − 268 = 128. Getting the other addend back means the sum is right.

How many carries are there in 268 + 128?

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 128 + 268 the same as 268 + 128?

Yes. Addition is commutative, so both give 396; the column looks the same with either number on top.

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