This is part of our collection of favourite rich tasks arranged by topic.
If you are a teacher, you can find the whole collection on our Secondary Curriculum teacher page.
Alternatively, if you are a student, you'll find the same problems on our Secondary Curriculum student page.
Can you match pairs of fractions, decimals and percentages, and beat your previous scores?
Can you make doughnuts by matching these fractions, decimals and percentages?
A monkey with peaches, keeps a fraction of them each day, gives the rest away, and then eats one. How long can his peaches last?
Is there a quick way to work out whether a fraction terminates or recurs when you write it as a decimal?
Imagine you were given the chance to win some money... and imagine you had nothing to lose...
Can you find the pairs that represent the same amount of money?
Ben, Jack and Emma passed counters to each other and ended with the same number of counters. How many did they start with?
What do you notice about these families of recurring decimals?
Can you express every recurring decimal as a fraction?
