Question

How do you write 1.9 x 102 in standard form?

Answer 1

We are given the following number in scientific notation.

`1.9*10^2`

We are asked to write this number in standard form.

Method 1:

Simply multiply 1.9 by 10²

`1.9*10^2=1.9*(10*10)=1.9*100=190`

Method 2:

Simply move the decimal point to the right by 2 places (since the exponent is 2