Question

Carry out the following multiplication (1.38 x 10^2)(2.58 x 10^-7)

Answer 1

(1.38*10^2)(2.58*10^-7)             First Expand
1.38*2.58*10^2*10^-7                 Cancel the 10's
1.38*2.58*10^-5                          Multiply the numbers
3.5604*10^-5                              Expand if necessary
=0.000035604