Which Number Doesn't Belong? Math Challenge for Kids

This unique math challenge will get kids of all ages thinking! There isn't just one right answer, so use these math sets to encourage math talks and spark a likely debate!

Which One Doesn't Belong: A Quick and Fun Math Activity - Smith Curriculum and Consulting

Number 15 which is the odd one out?

I created the above WODB question for a group of elementary teachers. Making a good WODB problem takes a bit of.

WHICH ONE DOESN'T BELONG? Dedicated to providing thought-provoking puzzles for math teachers and students alike. There are no answers provided as there are many different, correct ways of choosing which one doesn't belong.

WODB (Which One Doesn't Belong?) seems to be a community-created list of problems like this one involving 4 shapes

Number 19 which is the odd one out?

Today, I just want to write a quick post about a resource that I hope everyone is already familiar with.

Today, I just want to write a quick post about a resource that I hope everyone is already familiar with. I used it a couple of weeks.

Find and explain why each number doesn't belong with the others.