3 out of 3
Can you find sets of sloping lines that enclose a square?
3 out of 3
How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order?
3 out of 3
Imagine starting with one yellow cube and covering it all over with a single layer of red cubes, and then covering that cube with a layer of blue cubes. How many red and blue cubes would you need?
3 out of 3
Start with two numbers and generate a sequence where the next number is the mean of the last two numbers...
3 out of 3
Explore the effect of combining enlargements.
3 out of 3
Delight your friends with this cunning trick! Can you explain how it works?
3 out of 3
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
1 out of 3
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
1 out of 3
Can you find the values at the vertices when you know the values on the edges?
1 out of 3
Draw some quadrilaterals on a 9-point circle and work out the angles. Is there a theorem?
