Being resilient

game
Favourite

Factors and Multiples Game

Age

7 to 16

Challenge level

1 out of 3

A game in which players take it in turns to choose a number. Can you block your opponent?
problem
Favourite

Fruity Totals

Age

7 to 16

Challenge level

1 out of 3

In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
problem
Favourite

Two and Two

Age

7 to 16

Challenge level

3 out of 3

How many solutions can you find to this sum? Each of the different letters stands for a different number.
problem
Favourite

Almost One

Age

11 to 14

Challenge level

1 out of 3

Choose some fractions and add them together. Can you get close to 1?
problem
Favourite

Climbing Complexity

Age

11 to 14

Challenge level

1 out of 3

In the 2020 Olympic Games, sport climbing was introduced for the first time, and something very interesting happened with the scoring system. Can you find out what was interesting about it?
problem
Favourite

American Billions

Age

11 to 14

Challenge level

1 out of 3

Play the divisibility game to create numbers in which the first two digits make a number divisible by 2, the first three digits make a number divisible by 3...
problem
Favourite

Frogs

Age

11 to 14

Challenge level

1 out of 3

How many moves does it take to swap over some red and blue frogs? Do you have a method?
problem
Favourite

Largest Product

Age

11 to 14

Challenge level

1 out of 3

Which set of numbers that add to 100 have the largest product?
problem
Favourite

Reflecting Squarely

Age

11 to 14

Challenge level

1 out of 3

In how many ways can you fit all three pieces together to make shapes with line symmetry?
problem
Favourite

Isosceles Triangles

Age

11 to 14

Challenge level

1 out of 3

Draw some isosceles triangles with an area of $9cm^2$ and a vertex at (20,20). If all the vertices must have whole number coordinates, how many is it possible to draw?