Pre-Algebra Examples

Multiply Using Long Multiplication 15.6*7.123
Step 1
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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Step 2
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 .
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Step 3
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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Step 4
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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Step 5
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 .
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Step 6
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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Step 7
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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Step 8
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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Step 9
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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Step 10
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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Step 11
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 .
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Step 12
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 .
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Step 13
Add the numbers in each column. In this case, add , then place the in the result line.
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Step 14
Add the numbers in each column. In this case, add , then place the in the result line.
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Step 15
Add the numbers in each column. In this case, add , then place the in the result line and carry the .
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Step 16
Add the numbers in each column. In this case, add , then place the in the result line and carry the .
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Step 17
Add the numbers in each column. In this case, add , then place the in the result line and carry the .
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Step 18
Add the numbers in each column. In this case, add , then place the in the result line.
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Step 19
Add the numbers in each column. In this case, add , then place the in the result line.
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Step 20
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.