Addition with Regrouping: 647 + 26

Addition with Regrouping Calculator
First addend
Second addend

What is 647 + 26?

Answer

647 + 26 =
673

With regrouping: 1 carry — into the tens

647 + 26 in a column. Carries are the small circled digits above the columns.
1carry
6 4 7
+26
673

Column by column: 647 + 26

  • Ones: 7 + 6 = 13 — write 3, carry 1.
  • Tens: 4 + 2 + 1 = 7 — write 7.
  • Hundreds: nothing to add — write 6.

647 + 26 = 673

Second check: 673 − 647 = 26

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Column additions with 26

ExampleSum
85 + 26111
89 + 26115
92 + 26118
94 + 26120
98 + 26124
105 + 26131
136 + 26162
172 + 26198
203 + 26229
239 + 26265
268 + 26294
307 + 26333
348 + 26374
376 + 26402
402 + 26428
453 + 26479
485 + 26511
536 + 26562
578 + 26604
647 + 26673

FAQ

What is 647 + 26?

647 + 26 = 673

How do you check that 647 + 26 = 673?

Subtract one addend from the sum: 673 − 26 = 647, and 673 − 647 = 26. Getting the other addend back means the sum is right.

How many carries are there in 647 + 26?

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 26 + 647 the same as 647 + 26?

Yes. Addition is commutative, so both give 673; the column looks the same with either number on top.

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