Addition with Regrouping: 837 + 63

Addition with Regrouping Calculator
First addend
Second addend

What is 837 + 63?

Answer

837 + 63 =
900

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

837 + 63 in a column. Carries are the small circled digits above the columns.
1carry1carry
8 3 7
+63
900

Column by column: 837 + 63

  • Ones: 7 + 3 = 10 — write 0, carry 1.
  • Tens: 3 + 6 + 1 = 10 — write 0, carry 1.
  • Hundreds: 8 + 1 = 9 — write 9.

837 + 63 = 900

Second check: 900 − 837 = 63

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Column additions with 63

ExampleSum
203 + 63266
237 + 63300
239 + 63302
268 + 63331
307 + 63370
348 + 63411
376 + 63439
402 + 63465
453 + 63516
485 + 63548
536 + 63599
578 + 63641
637 + 63700
647 + 63710
737 + 63800
837 + 63900
937 + 631,000
1,937 + 632,000
4,937 + 635,000
9,937 + 6310,000

FAQ

What is 837 + 63?

837 + 63 = 900

How do you check that 837 + 63 = 900?

Subtract one addend from the sum: 900 − 63 = 837, and 900 − 837 = 63. Getting the other addend back means the sum is right.

How many carries are there in 837 + 63?

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 63 + 837 the same as 837 + 63?

Yes. Addition is commutative, so both give 900; the column looks the same with either number on top.

See Also