MULTIPLICATION OF DECIMALS BY 10, 100 and 1000 only -
There is some other way of multiplication of decimal number by 10, 100, 1000 will be discussed here.
Example.1) Multiply 0.65 X 10
Ans.) 0.65 X 10
65
= --------- X 10 Step.1) Convert the decimal (0.65) to fraction
100
65
= -------- Step.2) Cancel the zero at the end in numerator and
10 denominator.
= 6.5 Step.3) The fraction with denominator 10 is converted to decimal
Example.2) Multiply 9.563 x 100
Ans.) Multiply 9.563 x 100
9563
= -------- X 100 Step.1) Convert the decimal (9.563) to fraction
1000
9563
= -------- Step.2) Cancel the zero at the end in numerator and
10 denominator
= 956.3 Step.3) The fraction with denominator 10 is converted to decimal
Example.3) Multiply 0.085 X 1000
Ans.) 0.085 X 1000
85
= -------- X 1000 Step.1) Convert the decimal (0.085) to fraction
1000
85
= ------ Step.2) Cancel the zero at the end in numerator and denominator
1
= 85 Step.3) The fraction with denominator 1 is the answer (85)