You may also like

problem icon


Can you match the mass and length or height of these things to their pictures?

problem icon

Little Man

The Man is much smaller than us. Can you use the picture of him next to a mug to estimate his height and how much tea he drinks?

problem icon

Today's Date - 01/06/2009

What do you notice about the date 03.06.09? Or 08.01.09? This challenge invites you to investigate some interesting dates yourself.

Count the Crayons

Stage: 1 Challenge Level: Challenge Level:1
Imagine grouping the items into 10s.

Here is an example which leads me to believe that there are approximately 50 items in this picture. To be on the safe side, I will give a range as my answer and say that I think there are between 40 and 60 items.


Can you use a similar approach? Can you use a different approach?