Rules for Multiples

Using the Prime Climb gameboard to help us discover a rule for the 4s!

Here are all the divisibilty rules we know so far:

A number is divisible by 2 if it is even.

A number is divisible by 4 if you halve it and get an even number.

A number is divisible by 3 if the digits add up to 3, 6, or 9.

A number is divisible by 6 if it is even and the digits add up to 3, 6, or 9.

A number is divisible by 9 if the digits add up to 9.

A number is divisible by 5 if it ends in 0 or 5.

A number is divisible by 10 if it ends in 0.

For more on this topic, see my What IS Multiplication? post. We've really enjoyed using these Multiplication Fact Fluency Activities, in particular "Which Multiple Does Not Belong?"

This post contains affiliate links to materials I truly use for homeschooling. Qualifying purchases provide me with revenue. Thank you for your support!