Originally Posted by

**Unknown008** 1. You have billion following the number, meaning there are 12 more zeroes you need to add.

$\displaystyle 32.4 \times 10^{12}$

Now, in scientific notation, you 'want it to move by 1 decimal place' to the left, and hence, you have

$\displaystyle 3.24 \times 10 \times 10^{12}$

Which gives $\displaystyle 3.24 \times 10^{13}$

2. It's basically 93 with 6 zeroes, or, $\displaystyle 93\times 10^6$

You want it into scientific notation, and hence, it becomes $\displaystyle 9.3\times 10 \times 10^6 = 9.3 \times 10^7$