Addition with Regrouping: 389 + 291

Addition with Regrouping Calculator
First addend
Second addend

What is 389 + 291?

Answer

389 + 291 =
680

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

389 + 291 in a column. Carries are the small circled digits above the columns.
1carry1carry
3 8 9
+291
680

Column by column: 389 + 291

  • Ones: 9 + 1 = 10 — write 0, carry 1.
  • Tens: 8 + 9 + 1 = 18 — write 8, carry 1.
  • Hundreds: 3 + 2 + 1 = 6 — write 6.

389 + 291 = 680

Second check: 680 − 389 = 291

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291 + 291582
307 + 291598
325 + 291616
348 + 291639
354 + 291645
376 + 291667
389 + 291680
402 + 291693
427 + 291718
453 + 291744
468 + 291759
485 + 291776
519 + 291810
536 + 291827
564 + 291855
578 + 291869
602 + 291893
647 + 291938
683 + 291974

FAQ

What is 389 + 291?

389 + 291 = 680

How do you check that 389 + 291 = 680?

Subtract one addend from the sum: 680 − 291 = 389, and 680 − 389 = 291. Getting the other addend back means the sum is right.

How many carries are there in 389 + 291?

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 291 + 389 the same as 389 + 291?

Yes. Addition is commutative, so both give 680; the column looks the same with either number on top.

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