Question

What is `7.2 * 12 * .23`, rounded to the nearest hundredth?

Answer 1

The answer is 19.87

Explanation:

The trick here is to do all of the multiplication first, and then do the rounding. I did it like this:

`(7.2 xx 12) xx 0.23`

`=86.4 xx 0.23`

`=19.872`

Now, we take our product and round to the nearest hundredth (0.01's place). Since the value in the thousandths place is less than 5, we can round down:

`color(red)(ans=19.87)`