Multiplication of Decimals


 
 
Concept Explanation
 

Multiplication of Decimals

Multiplication of Decimals: Multiplying decimals is the same as multiplying whole numbers except for the decimal point in the answer. When you multiply decimals, the decimal point is placed in the product or answer so that the number of decimal places in the product is the sum of the decimal places in the numbers we want to multiply. The Steps will be:

Step 1:Multiply normally by ignoring the decimal point.

Step 2: Then put the decimal point in the product. It will have as many digits after the decimal as the sum of the decimal places in both the numbers that are to be multiplied.

Example: Multiply 21.4 with 3.6.

Solution: Multiply the numbers as usual, as shown. Now add the number of decimal places in 21.4 which is 1 and in 3.6 which is also 1. Write the decimal point two places from the right side to get the answer.

small 214 underline{x 36} 1284 underline{6420} 7,704     small 21.4  underline{x 3.6} 1284 underline{6420} 77.04 

Sample Questions
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Question : 1

0.14 x 100 = _____________

Right Option : B
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Explanation
Question : 2

Solve: 4.4 x 10 = _______________

Right Option : A
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Explanation
Question : 3

3.75 x 100 = ________________

Right Option : A
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Explanation
 
 


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