Rounding up numbers to the nearest hundred quiz. This is online math test for skills related to how to round up a number to the nearest hundred. Rounding up numbers to hundred requires that you pay attention to the value of the number in the tens place, if or not it is up to 5 or above. If it is below five, the number stays the same but if it is above five the value skips a place up. Once you find the correct answer and submit you will get feedback same thing if you got it incorrect. Teach kids in 3rd, 4th, 5th and 6th grades to understand rounding numbers to the nearest hundred.