Addition with Regrouping: 427 + 149

Addition with Regrouping Calculator
First addend
Second addend

What is 427 + 149?

Answer

427 + 149 =
576

With regrouping: 1 carry — into the tens

427 + 149 in a column. Carries are the small circled digits above the columns.
1carry
4 2 7
+149
576

Column by column: 427 + 149

  • Ones: 7 + 9 = 16 — write 6, carry 1.
  • Tens: 2 + 4 + 1 = 7 — write 7.
  • Hundreds: 4 + 1 = 5 — write 5.

427 + 149 = 576

Second check: 576 − 427 = 149

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325 + 149474
348 + 149497
351 + 149500
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376 + 149525
389 + 149538
402 + 149551
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519 + 149668
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564 + 149713
578 + 149727
602 + 149751

FAQ

What is 427 + 149?

427 + 149 = 576

How do you check that 427 + 149 = 576?

Subtract one addend from the sum: 576 − 149 = 427, and 576 − 427 = 149. Getting the other addend back means the sum is right.

How many carries are there in 427 + 149?

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 149 + 427 the same as 427 + 149?

Yes. Addition is commutative, so both give 576; the column looks the same with either number on top.

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