7.2x12x0.23 = round to the nearest hundredth

7.2 x 12 x 0.23 = 19.872

Now, find the hundredth place. 7 is in the hundredth place.

To round it, look at the number to the right. Remember: 4 and down = less, 5 and up = more. Since, 2 is 4 and down, your sum to the nearest hundredth is 19.87