Can you put the numbers 1 to 8 into the circles so that the four calculations are correct?
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
Do you agree with Badger's statements? Is Badger's reasoning 'watertight'? Why or why not?
Ayah conjectures that the diagonals of a square meet at right angles. Do you agree? How could you find out?
How many different triangles can you make on a circular pegboard that has nine pegs?
Investigate how the four L-shapes fit together to make an enlarged L-shape. You could explore this idea with other shapes too.
Can you complete this jigsaw of the multiplication square?
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
You have two sets of the digits 0-9. Can you arrange these in the five boxes to make four-digit numbers as close to the target numbers as possible?
This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
Can you find different ways of showing the same fraction? Try this matching game and see.
Use the information on these cards to draw the shape that is being described.
Are these statements always true, sometimes true or never true?
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 parallelogram.
Can you fill in this table square? The numbers 2-12 were used to generate it with just one number used twice.
Use the interactivity to move Pat. Can you reproduce the graphs and tell their story?
Use the interactivity to find all the different right-angled triangles you can make by just moving one corner of the starting triangle.
Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you work out the rule for each light?
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 rhombus.
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
Can you find all the different triangles on these peg boards, and find their angles?
Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?
Can you select the missing digit(s) to find the largest multiple?
Can you match pairs of fractions, decimals and percentages, and beat your previous scores?
A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
What is the smallest number of answers you need to reveal in order to work out the missing headers?
The Number Jumbler can always work out your chosen symbol. Can you work out how?
Can you use the clues to complete these 4 by 4 Mathematical Sudokus?
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
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?
Try entering different sets of numbers in the number pyramids. How does the total at the top change?
It's easy to work out the areas of most squares that we meet, but what if they were tilted?
