STANDARD FORM - 1

Evaluate the following giving your answer in standard form.

882.7 x 10^-9

   5 x 10^-50

Solution

=  882.7 x 10^-9

       5 x 10^-50

=  882.7  x   10^-9

       5         10^-50

=  176.54 x 10^{-9 –(-50)}

=  176.54 x 10^{-9 + 50}    

=  176.54 x 10⁴¹   [then we change 176.54 into standard form as well]

= 1.7654 x 10² x 10⁴¹   [when we have exponents with same base, we add 

   the powers.]

 

= 1.7654 x 10⁴³

= 1.77 x 10⁴³ [correct to 2 d.p.]

Hence   782.7 x 10^-9   = 1.77 x 10⁴³

                5 x 10^-50

TRY THIS………………..

Evaluate the following giving your answer in standard form.

0.001768 x 10^-9

   4 x 10^-60