Take three consecutive numbers and add them together. What do you notice?
These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?
A game in which players take it in turns to choose a number. Can you block your opponent?
In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
Can you use the clues to complete these 5 by 5 Mathematical Sudokus?
Can you use the clues to complete these 6 by 6 Mathematical Sudokus?
What can you see? What do you notice? What questions can you ask?
Can you find any two-digit numbers that satisfy all of these statements?
Which of these pocket money systems would you rather have?
