Column Addition: 405,067 + 70,312

Addition with Regrouping Calculator
First addend
Second addend

What is 405,067 + 70,312?

Answer

405,067 + 70,312 =
475,379

No regrouping: each column is added on its own

405,067 + 70,312 in a column. No carries.
4 0 5 0 6 7
+70312
475379

Column by column: 405,067 + 70,312

  • Ones: 7 + 2 = 9 — write 9.
  • Tens: 6 + 1 = 7 — write 7.
  • Hundreds: 0 + 3 = 3 — write 3.
  • Thousands: 5 + 0 = 5 — write 5.
  • Ten thousands: 0 + 7 = 7 — write 7.
  • Hundred thousands: nothing to add — write 4.

405,067 + 70,312 = 475,379

Second check: 475,379 − 405,067 = 70,312

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FAQ

What is 405,067 + 70,312?

405,067 + 70,312 = 475,379

How do you check that 405,067 + 70,312 = 475,379?

Subtract one addend from the sum: 475,379 − 70,312 = 405,067, and 475,379 − 405,067 = 70,312. Getting the other addend back means the sum is right.

How many carries are there in 405,067 + 70,312?

None: no column adds up to 10 or more, so every digit of the sum is written straight away.

Is 70,312 + 405,067 the same as 405,067 + 70,312?

Yes. Addition is commutative, so both give 475,379; the column looks the same with either number on top.

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