Find the Number Part 1

Find the Number Part 1 is a Grade 4 divisibility challenge focused on numbers divisible by 2, 3, and 5. Working in groups, students have a set amount of time to generate as many numbers as they can that satisfy all three conditions. Accuracy matters because an incorrect number can cost the group, so students need to apply divisibility rules carefully rather than simply produce a long list.

Use it after teaching divisibility rules to see whether students can combine several tests at once. The results lead naturally into discussion about why qualifying numbers share patterns such as ending in zero. Generate lesson support for Find the Number Part 1 with a free Find a Math Game account. No credit card; 3 lifetime lesson generations.