Question

How does a number in scientific notation change when you multiply it by 100?

Answer 1

100 is equal to $10^{2}$, So, when you multiply the scientific notation by 100, you should add 2 to the exponent of 10 in that scientific notation:

For example;
$9.12* 10^{8} * 100$

= $9.12* 10^{8} * 10^{2}$

= $9.12* 10^{8+2}$

= $9.12* 10^{10}$