# Cambridge Primary Maths Mapping Stage 5

For more resources see the primary curriculum mapping documents.

### Odd Times Even

##### Age 5 to 7Challenge Level

This problem looks at how one example of your choice can show something about the general structure of multiplication.

### Alphabet Blocks

##### Age 5 to 11Challenge Level

These alphabet bricks are painted in a special way. A is on one brick, B on two bricks, and so on. How many bricks will be painted by the time they have got to other letters of the alphabet?

### Abundant Numbers

##### Age 7 to 11Challenge Level

48 is called an abundant number because it is less than the sum of its factors (without itself). Can you find some more abundant numbers?

### Greater Than or Less Than?

##### Age 7 to 11Challenge Level

Use the numbers and symbols to make this number sentence correct. How many different ways can you find?

### Trebling

##### Age 7 to 11Challenge Level

Can you replace the letters with numbers? Is there only one solution in each case?

### Which Would You Rather?

##### Age 7 to 11Challenge Level

Would you rather: Have 10% of Â£5 or 75% of 80p? Be given 60% of 2 pizzas or 26% of 5 pizzas?

### Shape Times Shape

##### Age 7 to 11Challenge Level

These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

### The Deca Treelive

##### Age 7 to 11Challenge Level

Find out what a Deca Tree is and then work out how many leaves there will be after the woodcutter has cut off a trunk, a branch, a twig and a leaf.

### Tug Harder!

##### Age 7 to 11Challenge Level

In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?

### Multiply Multiples 1

##### Age 7 to 11Challenge Level

Can you complete this calculation by filling in the missing numbers? In how many different ways can you do it?

### What Do You Need?

##### Age 7 to 11Challenge Level

Four of these clues are needed to find the chosen number on this grid and four are true but do nothing to help in finding the number. Can you sort out the clues and find the number?

### Multiply Multiples 2

##### Age 7 to 11Challenge Level

Can you work out some different ways to balance this equation?

### Tables Without Tens

##### Age 7 to 11Challenge Level

Investigate and explain the patterns that you see from recording just the units digits of numbers in the times tables.

### Round the Dice Decimals 1

##### Age 7 to 11Challenge Level

Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

### Four Go

##### Age 7 to 11Challenge Level

This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?

### Forgot the Numbers

##### Age 7 to 11Challenge Level

On my calculator I divided one whole number by another whole number and got the answer 3.125. If the numbers are both under 50, what are they?

### Number the Sides

##### Age 7 to 11Challenge Level

The triangles in these sets are similar - can you work out the lengths of the sides which have question marks?

### Pumpkin Pie Problem

##### Age 7 to 11Challenge 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?

### How Much?

##### Age 7 to 11Challenge Level

Use your logical-thinking skills to deduce how much Dan's crisps and ice-cream cost altogether.

### Twenty Divided Into Six

##### Age 7 to 11Challenge Level

Katie had a pack of 20 cards numbered from 1 to 20. She arranged the cards into 6 unequal piles where each pile added to the same total. What was the total and how could this be done?

### Andy's Marbles

##### Age 7 to 11Challenge Level

Andy had a big bag of marbles but unfortunately the bottom of it split and all the marbles spilled out. Use the information to find out how many there were in the bag originally.

### Reach 100

##### Age 7 to 11Challenge Level

Choose four different digits from 1-9 and put one in each box so that the resulting four two-digit numbers add to a total of 100.

### Cycling Squares

##### Age 7 to 11Challenge Level

Can you make a cycle of pairs that add to make a square number using all the numbers in the box below, once and once only?

### Matching Fractions, Decimals and Percentages

##### Age 7 to 14Challenge Level

Can you match pairs of fractions, decimals and percentages, and beat your previous scores?

### Nice or Nasty

##### Age 7 to 14Challenge Level

There are nasty versions of this dice game but we'll start with the nice ones...

### Diagonal Sums

##### Age 7 to 14Challenge Level

In this 100 square, look at the green square which contains the numbers 2, 3, 12 and 13. What is the sum of the numbers that are diagonally opposite each other? What do you notice?

### Factor Lines

##### Age 7 to 14Challenge Level

Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.

### Doughnut Percents

##### Age 7 to 14Challenge Level

A task involving the equivalence between fractions, percentages and decimals which depends on members of the group noticing the needs of others and responding.

### Matching Triangles

##### Age 5 to 7Challenge Level

Can you sort these triangles into three different families and explain how you did it?

### A Cartesian Puzzle

##### Age 7 to 11Challenge Level

Find the missing coordinates which will form these eight quadrilaterals. These coordinates themselves will then form a shape with rotational and line symmetry.

### National Flags

##### Age 7 to 11Challenge Level

This problem explores the shapes and symmetries in some national flags.

### Nine-pin Triangles

##### Age 7 to 11Challenge Level

How many different triangles can you make on a circular pegboard that has nine pegs?

### How Safe Are You?

##### Age 7 to 11Challenge Level

How much do you have to turn these dials by in order to unlock the safes?

### Cut Nets

##### Age 7 to 11Challenge Level

Each of the nets of nine solid shapes has been cut into two pieces. Can you see which pieces go together?

### Egyptian Rope

##### Age 7 to 11Challenge Level

The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?

### Reflector ! Rotcelfer

##### Age 7 to 11Challenge Level

Can you place the blocks so that you see the reflection in the picture?

### Symmetry Challenge

##### Age 7 to 11Challenge Level

Systematically explore the range of symmetric designs that can be created by shading parts of the motif below. Use normal square lattice paper to record your results.

### Olympic Turns

##### Age 7 to 11Challenge Level

This task looks at the different turns involved in different Olympic sports as a way of exploring the mathematics of turns and angles.

### Eight Hidden Squares

##### Age 7 to 14Challenge Level

On the graph there are 28 marked points. These points all mark the vertices (corners) of eight hidden squares. Can you find the eight hidden squares?

### Shaping It

##### Age 5 to 11Challenge Level

These pictures were made by starting with a square, finding the half-way point on each side and joining those points up. You could investigate your own starting shape.

### Order, Order!

##### Age 5 to 11Challenge Level

Can you place these quantities in order from smallest to largest?

### How Tall?

##### Age 5 to 11Challenge Level

A group of children are discussing the height of a tall tree. How would you go about finding out its height?

### Times

##### Age 7 to 11Challenge Level

Which times on a digital clock have a line of symmetry? Which look the same upside-down? You might like to try this investigation and find out!

### Tiles in the Garden

##### Age 7 to 11Challenge Level

How many tiles do we need to tile these patios?

### At the Pumps

##### Age 7 to 11Challenge Level

How will you find out how much a tank of petrol costs?

### The Big Cheese

##### Age 7 to 11Challenge Level

Investigate the area of 'slices' cut off this cube of cheese. What would happen if you had different-sized block of cheese to start with?

### Weighing Fruit

##### Age 7 to 11Challenge Level

Can you use this information to estimate how much the different fruit selections weigh in kilos and pounds?

### Watermelons

##### Age 7 to 11Challenge Level

These watermelons have been entered into a competition. Use the information to work out the number of points each one was awarded.

### How Many Times?

##### Age 7 to 11Challenge Level

On a digital 24 hour clock, at certain times, all the digits are consecutive. How many times like this are there between midnight and 7 a.m.?

### Shape Draw

##### Age 7 to 11Challenge Level

Use the information on these cards to draw the shape that is being described.

### Cubes

##### Age 7 to 11Challenge Level

How many faces can you see when you arrange these three cubes in different ways?

### Through the Window

##### Age 7 to 11Challenge Level

My local DIY shop calculates the price of its windows according to the area of glass and the length of frame used. Can you work out how they arrived at these prices?

### Wrapping Presents

##### Age 7 to 11Challenge Level

Choose a box and work out the smallest rectangle of paper needed to wrap it so that it is completely covered.

### Numerically Equal

##### Age 7 to 11Challenge Level

Can you draw a square in which the perimeter is numerically equal to the area?

### The Time Is ...

##### Age 7 to 11Challenge Level

Can you put these mixed-up times in order? You could arrange them in a circle.

### Slow Coach

##### Age 7 to 11Challenge Level

How many of this company's coaches travelling in the opposite direction does the 10 am coach from Alphaton pass before reaching Betaville?

### Oh! Harry!

##### Age 7 to 11Challenge Level

A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?

### Probable Words

##### Age 5 to 7Challenge Level

If you asked your mum/dad/friend to take you to the park today, what sort of response might you get?

### Cashing Up

##### Age 5 to 11Challenge Level

What is the most common coin in this shopkeeper's till?

### In the Playground

##### Age 5 to 11Challenge Level

What can you say about the child who will be first on the playground tomorrow morning at breaktime in your school?

### Odds or Sixes?

##### Age 7 to 11Challenge Level

Play this dice game yourself. How could you make it fair?

### Three Spinners

##### Age 7 to 11Challenge Level

These red, yellow and blue spinners were each spun 45 times in total. Can you work out which numbers are on each spinner?

### The Car That Passes

##### Age 7 to 11Challenge Level

What statements can you make about the car that passes the school gates at 11am on Monday? How will you come up with statements and test your ideas?

### Graphing Number Patterns

##### Age 7 to 11Challenge Level

Does a graph of the triangular numbers cross a graph of the six times table? If so, where? Will a graph of the square numbers cross the times table too?

### The Twelve Pointed Star Game

##### Age 7 to 11Challenge Level

Have a go at this game which involves throwing two dice and adding their totals. Where should you place your counters to be more likely to win?