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Chapter 2: Q4. (page 62)

Perform the indicated operation. (pp. 750鈥�752)

5.5鈥�鈥�x鈥�鈥�9.4

Short Answer

Expert verified

5鈥�.鈥�5鈥�鈥�x鈥�鈥�9鈥�.鈥�4鈥�鈥�=鈥�鈥�51.70鈥�

Step by step solution

01

Step-1 – Define Decimal numbers: 

Decimal numbers are a set of numbers written together with a dot in between then that is called a decimal point.

Example: 56.78, 23.4, 29.008.

02

Step-2 – How do you multiply two decimal numbers? 

To multiply decimals, first multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor. Finally, put the same number of digits behind the decimal in the product.

03

Step-3 –Evaluate: 5.5 x 9.4 

5.5 and 9.4 both the decimal numbers are having one digit after the decimal point. Hence the product will be two digits after the decimal point.

5鈥�.鈥�5鈥�鈥�x鈥�鈥�9鈥�.鈥�4鈥�鈥�=鈥�鈥�51.70鈥�

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