Rounding to the nearest 10 or 100

The first instance of the  exercise is in the 3rd Grade Math Mission. This exercise introduces users to basic rounding in numbers.

Types of Problems
There are three types of problems in this exercise:
 * 1) Rounding with multiple choices: This type of problem gives users a number and asks them to round it in a certain constraint. It gives users multiple choices and they must chose the ones that apply to it.Round1.png
 * 2) Rounding with hints: This type of problem gives users a couple hints to figure out what number fits the description.
 * 3) Rounding with simple word problems: This type of problem gives users a sentence and asks them to find that number it describes.

Strategies
This is a relatively easy exercise, so if you remember how to round and can use these skills quickly, you can earn speed badges. Even if this skill is difficult for you, you can receive persistence badges if you keep practicing!