Question

Write 4,500 in scientific notation.

Answer 1

place the decimal point between the first two digits (4 and 5)

4.5

now we must move the decimal point \(\large \color{red}{3}\) places to the right to get back to 4,500

so that is why

\[\Large 4,500 = 4.5 \times 10^{\color{red}{3}}\]