Question Video: Rounding a Three-Digit Number to the Nearest Hundred Mathematics • Second Year of Primary School

Video Transcript

William has 456 marbles. We want to round this number to the nearest hundred. Complete: The number 456 is between what and what. How many marbles does William have to the nearest hundred?

We know that William has 456 marbles, and we need to round this number to the nearest hundred. In the first part of the question, we need to complete the missing numbers. In other words, which two hundreds is the number 456 between? The number 456 has four 100s. It comes after 400 and before 500.

To find out which hundred 456 is nearest to, we need to look to the tens digit. 456 has five 10s. If the tens digit is five or more, we have to round up. So we have to round up to 500. The number 456 is between 400 and 500. And the number of marbles William has, rounded to the nearest hundred, is 500. 456 rounded to the nearest hundred is 500.