Addition with Regrouping: 987,654 + 70,312

Addition with Regrouping Calculator
First addend
Second addend

What is 987,654 + 70,312?

Answer

987,654 + 70,312 =
1,057,966

The sum is longer than the addends: 2 carries — into the hundred thousands and the millions; the last one makes a new digit

987,654 + 70,312 in a column. Carries are the small circled digits above the columns.
1carry1carry
9 8 7 6 5 4
+70312
1057966

Column by column: 987,654 + 70,312

  • Ones: 4 + 2 = 6 — write 6.
  • Tens: 5 + 1 = 6 — write 6.
  • Hundreds: 6 + 3 = 9 — write 9.
  • Thousands: 7 + 0 = 7 — write 7.
  • Ten thousands: 8 + 7 = 15 — write 5, carry 1.
  • Hundred thousands: 9 + 1 = 10 — write 0, carry 1.
  • Millions: the carried 1 — write 1.

987,654 + 70,312 = 1,057,966

Second check: 1,057,966 − 987,654 = 70,312

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FAQ

What is 987,654 + 70,312?

987,654 + 70,312 = 1,057,966

How do you check that 987,654 + 70,312 = 1,057,966?

Subtract one addend from the sum: 1,057,966 − 70,312 = 987,654, and 1,057,966 − 987,654 = 70,312. Getting the other addend back means the sum is right.

How many carries are there in 987,654 + 70,312?

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 70,312 + 987,654 the same as 987,654 + 70,312?

Yes. Addition is commutative, so both give 1,057,966; the column looks the same with either number on top.