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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Ratio and Proportion KS2

### Pumpkin Pie Problem

### Rectangle Tangle

### In the Money

### Orange Drink

### Fraction Fascination

### Jumping

Y*ou may also be interested in this collection of activities from the STEM Learning website, that complement the NRICH activities above.*

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

30 April (Primary), 1 May (Secondary)

30 April (Primary), 1 May (Secondary)

Or search by topic

This collection is one of our Primary Curriculum collections - tasks that are grouped by topic.

Age 7 to 11

Challenge Level

Peter wanted to make two pies for a party. His mother had a recipe for him to use. However, she always made 80 pies at a time. Did Peter have enough ingredients to make two pumpkin pies?

Age 7 to 11

Challenge Level

The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the shapes?

Age 7 to 11

Challenge Level

One quarter of these coins are heads but when I turn over two coins, one third are heads. How many coins are there?

Age 7 to 11

Challenge Level

A 750 ml bottle of concentrated orange squash is enough to make fifteen 250 ml glasses of diluted orange drink. How much water is needed to make 10 litres of this drink?

Age 7 to 11

Challenge Level

This problem challenges you to work out what fraction of the whole area of these pictures is taken up by various shapes.

Age 7 to 11

Challenge Level

After training hard, these two children have improved their results. Can you work out the length or height of their first jumps?

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