Addition with Regrouping: 578 + 83

Addition with Regrouping Calculator
First addend
Second addend

What is 578 + 83?

Answer

578 + 83 =
661

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

578 + 83 in a column. Carries are the small circled digits above the columns.
1carry1carry
5 7 8
+83
661

Column by column: 578 + 83

  • Ones: 8 + 3 = 11 — write 1, carry 1.
  • Tens: 7 + 8 + 1 = 16 — write 6, carry 1.
  • Hundreds: 5 + 1 = 6 — write 6.

578 + 83 = 661

Second check: 661 − 578 = 83

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Column additions with 83

ExampleSum
268 + 83351
307 + 83390
317 + 83400
348 + 83431
376 + 83459
402 + 83485
417 + 83500
453 + 83536
485 + 83568
517 + 83600
536 + 83619
578 + 83661
617 + 83700
647 + 83730
717 + 83800
817 + 83900
917 + 831,000
1,917 + 832,000
4,917 + 835,000
9,917 + 8310,000

FAQ

What is 578 + 83?

578 + 83 = 661

How do you check that 578 + 83 = 661?

Subtract one addend from the sum: 661 − 83 = 578, and 661 − 578 = 83. Getting the other addend back means the sum is right.

How many carries are there in 578 + 83?

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 83 + 578 the same as 578 + 83?

Yes. Addition is commutative, so both give 661; the column looks the same with either number on top.

See Also