Students learn to list factor pairs through the use of a dynamic website that uses grid lines and a listing strategy. They will discover how to find the missing factor of those factor pair Plan your 60-minute lesson in Math or Number Sense and Operations with helpful tips from Mary Ellen Kanthack.
List the perfect factors of the given numbers. Then determine which number is a perfect number. (A perfect number is a number whose proper factors add up to the number itself.) 3rd and 4th Grades. Least Common Multiple (LCM) Worksheets. Worksheets in which students determine the least common multiple, or LCM, for each number set. Finding Multiples.