Question

Arithmetic Operations with Numbers Written Using Scientific Notation

ple 2: Arithmetic Operations with Numbers Written Using Scientific Notation
(2.4 × 10^20) + (4.5 × 10^21)

Answer 1

So after addition number will be
`47.4* 10^(20)`

Explanation:

We have given expression
`2.4* 10^(20)+4.5* 10^(21)`

We have to add this expression using scientific notation

So for adding first we have to make power of both the equation same

As
`4.5* 10^(21)` can be written as
`45* 10^(20)`

So
`2.4* 10^(20)+4.5* 10^(21)+2.4* 10^(20)+45* 10^(20)=10^(20)(45+2.4)=47.4* 10^(20)`

So after addition number will be
`47.4* 10^(20)`