Converting to & from Standard Form Flashcards

All 3 cards in this deck

What form must a number be written in to be in standard form?

$A \times 10^{n}$, where $1 \le A < 10$ and $n$ is an integer.

What are the steps to write a large ordinary number in standard form?

e.g. $468\,000$

1. Put the decimal point after the first non-zero digit: $4.68$
2. Count the places the point has moved: $5$
3. Write it as $4.68 \times 10^{5}$

True or false? A number written in standard form with a negative power of 10 is a negative number.

False. A negative power means the number is between 0 and 1, e.g. $7 \times 10^{-3} = 0.007$.