STANDARD FORM 1

Evaluate (889.3 x 10^-20) x (51 x 10^-50) giving your answer in standard form.

Solution

(889.3 x 51) x (10^-20x 10^-50)  Group decimals alone, and powers alone

= 45354.3 x  10^{-20 + -50}

= 45354.3 x  10^-70

= 4.53543 x  10⁴ x 10^-70

= 4.53543 x  10^{4 + -70}

4.53543  x  10^-66 answer    

TRY THIS………………….. 

Evaluate (219.3 x 10^-30) x (54 x 10^-50) giving your answer in standard form.