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?
Annie and Ben are playing a game with a calculator. What was Annie's secret number?
These caterpillars have 16 parts. What different shapes do they make if each part lies in the small squares of a 4 by 4 square?
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?
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?
Can you design your own version of the Olympic rings, using interlocking squares instead of circles?
Here's a very elementary code that requires young children to read a table, and look for similarities and differences.
Use the information about Sally and her brother to find out how many children there are in the Brown family.
Here are shadows of some 3D shapes. What shapes could have made them?
Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?
