### I'm Eight

Find a great variety of ways of asking questions which make 8.

### Let's Investigate Triangles

Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?

### Noah

Noah saw 12 legs walk by into the Ark. How many creatures did he see?

##### Age 5 to 7Challenge Level

Thank you to everyone who sent in a solution. This is a problem which can be solved in several different ways.

Rachel, from Burrough Green, drew this bar model to help her solve the problem:

Rachel explained how she found her answer:

I worked out how much I needed to take away from 10, that was 4. Then I divided 6 by 3, that was 2. Next I added the ones that I had taken away to the right baskets. The pink basket had 5 eggs, the brown basket had 3 eggs and the red basket had 2 eggs.

Well done, Rachel!

Some of you tried out numbers in a logical way until you found the ones that worked, like Erika from East Bergholt High School who wrote:

If there was 1 egg in the brown basket, no eggs in the red basket and 3 eggs in the pink basket, that would only make 4 eggs.
If there were 2 eggs in the brown basket, 1 egg in the red basket and 4 eggs in the pink basket, this only makes 7 eggs.
So finally, if there were 3 eggs in the brown basket, 2 eggs in the red basket and 5 eggs in the pink basket, there would be 10 eggs altogether.

Absolutely correct - thank you Erika.

Phoebe, Alice and Luke from Cambridge also did the problem in this kind of way, but they used counters to help them. Their Dad explained how they went about finding the solution:

Well done! It can be a very good idea to use some sort of "equipment" to help answer problems.

Jas from Greenpark Combined School solved the problem algebraically: