Or search by topic
Now, I wonder what Becky changed her search to? If Becky is going to change her search to try and arrive at an answer perhaps she wants to think about this idea.
Alex and her family from Leicester, England worked on this Vuvvian problem. Alex explains how they set about arriving at a solution:
However, I'm not sure that 210 is a multiple of all of the numbers 2, 3, 4, 5, 6 and 7, is it?
Anita and Jing Jing from Kilvington Girls' Grammar in Australia, think that's only the half of it...in fact, they think that it is 420 year wait between Super-eclipses.
Franco and Jonny from Northamptonshire agree that is it 420. They say:
We started off with 42. Every number goes into 42, except 5, so we multiplied it by 5.
6 doesn't go into 210, so we went back to 42. We then multiplied 42 by 10, to get 420. We checked by dividing 420 by 1, 2, 3, 4, 5, 6 and 7. They are all factors of 420. So the overall answer is 420.
We can arrange dots in a similar way to the 5 on a dice and they usually sit quite well into a rectangular shape. How many altogether in this 3 by 5? What happens for other sizes?
What happens if you join every second point on this circle? How about every third point? Try with different steps and see if you can predict what will happen.
Let's say you can only use two different lengths - 2 units and 4 units. Using just these 2 lengths as the edges how many different cuboids can you make?