A hundred square has been printed on both sides of a piece of paper. What is on the back of 100? 58? 23? 19?
This problem challenges you to find out how many odd numbers there are between pairs of numbers. Can you find a pair of numbers that has four odds between them?
What is the greatest number of squares you can make by overlapping three squares?
Here are shadows of some 3D shapes. What shapes could have made them?
You'll need to know your number properties to win a game of Statement Snap...
Watch this animation. What do you see? Can you explain why this happens?
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?
Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?
There are six numbers written in five different scripts. Can you sort out which is which?
On a digital 24 hour clock, at certain times, all the digits are consecutive. How many times like this are there between midnight and 7 a.m.?
