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

. | ||||

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

. | ||||

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

. | ||||

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 .

. | ||||

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

. | ||||

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

. | ||||

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

. | ||||

. | ||||

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

. | ||||

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

. | ||||

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

. | ||||

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

. | ||||

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

. | ||||

. | ||||

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 19.99*12