Addition with Regrouping: 929 + 71

Addition with Regrouping Calculator
First addend
Second addend

What is 929 + 71?

Answer

929 + 71 =
1,000

The sum is longer than the addends: 3 carries — into the tens, the hundreds and the thousands; the last one makes a new digit

929 + 71 in a column. Carries are the small circled digits above the columns.
1carry1carry1carry
9 2 9
+71
1000

Column by column: 929 + 71

  • Ones: 9 + 1 = 10 — write 0, carry 1.
  • Tens: 2 + 7 + 1 = 10 — write 0, carry 1.
  • Hundreds: 9 + 1 = 10 — write 0, carry 1.
  • Thousands: the carried 1 — write 1.

929 + 71 = 1,000

Second check: 1,000 − 929 = 71

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268 + 71339
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376 + 71447
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453 + 71524
485 + 71556
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578 + 71649
629 + 71700
647 + 71718
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829 + 71900
929 + 711,000
1,929 + 712,000
4,929 + 715,000
9,929 + 7110,000

FAQ

What is 929 + 71?

929 + 71 = 1,000

How do you check that 929 + 71 = 1,000?

Subtract one addend from the sum: 1,000 − 71 = 929, and 1,000 − 929 = 71. Getting the other addend back means the sum is right.

How many carries are there in 929 + 71?

3 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 71 + 929 the same as 929 + 71?

Yes. Addition is commutative, so both give 1,000; the column looks the same with either number on top.

See Also