Addition with Regrouping: 647 + 98

Addition with Regrouping Calculator
First addend
Second addend

What is 647 + 98?

Answer

647 + 98 =
745

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

647 + 98 in a column. Carries are the small circled digits above the columns.
1carry1carry
6 4 7
+98
745

Column by column: 647 + 98

  • Ones: 7 + 8 = 15 — write 5, carry 1.
  • Tens: 4 + 9 + 1 = 14 — write 4, carry 1.
  • Hundreds: 6 + 1 = 7 — write 7.

647 + 98 = 745

Second check: 745 − 647 = 98

Similar examples to practise

See Also

FAQ

What is 647 + 98?

647 + 98 = 745

How do you check that 647 + 98 = 745?

Subtract one addend from the sum: 745 − 98 = 647, and 745 − 647 = 98. Getting the other addend back means the sum is right.

How many carries are there in 647 + 98?

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 98 + 647 the same as 647 + 98?

Yes. Addition is commutative, so both give 745; the column looks the same with either number on top.