4th Grade - Operations & Algebraic Thinking:

Factors and Multiples


BBC Math Many different games covering number sense, basic facts, fractions, decimals, shapes, angles, measurement, money, time, probability, graphing, and range, mean, median, and mode.
Factor Game Interactive game that exercises your factoring ability. You can play against the computer or against a friend
Factorize Visually explore the concept of factors by creating rectangular arrays and then identifying the factors.
Prime Numbers Video about how to identify prime numbers
Pumpkin Multiples Interactive site to practice finding multiples of numbers you choose
Word Problems DataBase Hundreds of self-checking math word problems