Multiply by . Place the result in the next column in the result line. There is one result line for each digit in .

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Multiply by . Place the result in the next column in the result line. There is one result line for each digit in .

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Multiply by . Place the result in the next column in the result line. There is one result line for each digit in .

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Multiply by . Place the ones digit in the result line and carry the tens digit . There is one result line for each digit in .

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Multiply by and add the carried . Place the result in the next column in the result line. There is one result line for each digit in .

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Add the numbers in each column. In this case, add , then place the in the result line.

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Add the numbers in each column. In this case, add , then place the in the result line.

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Add the numbers in each column. In this case, add , then place the in the result line.

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Add the numbers in each column. In this case, add , then place the in the result line.

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To find the number of decimal places needed in the answer, add the number of decimal places in the multiplier and multiplicand. In this case, there is a total of , so the answer must have decimal places as well.

Multiply 10.5*20