3rd grade rounding up numbers to nearest ten game - To round up a number simply means to make it up to the nearest whole number. The rules are defined by rounding it up to the nearest one, nearest ten, nearest hundred or nearest thousand. It is important to easily understand the skill behind rounding numbers. There are usually two things to note; numbers can either be rounded up or round off. For example, if the number on the place that is being indicated in any problem is 4 and below, it will be rounded down while if it is more than 4, it will be rounded up. Rounding numbers to the nearest ten is the focus of this game. It is a slot machine game for students to have fun reviewing with.