Multiply 81*9

Math
81⋅9
Multiply using long multiplication.
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Multiply 9 by 1. Place the result in the next column in the result line. There is one result line for each digit in 9.
81
⨯9
9
Multiply 9 by 8. Place the ones digit (2) in the result line and carry the tens digit (7). There is one result line for each digit in 9.
81
⨯9
729
Add the numbers in each column. In this case, add 9, then place the 9 in the result line.
81
⨯9
729
9
Add the numbers in each column. In this case, add 2, then place the 2 in the result line.
81
⨯9
729
29
Add the numbers in each column. In this case, add 7, then place the 7 in the result line.
81
⨯9
729
729
81
⨯9
729
729
The result of 81⋅9 is 729.
729
Multiply 81*9

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