# CLASS-4MULTIPLICATION OF DECIMAL by 10, 100, & 1000

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)