These activities are part of our Primary collections, which are problems grouped by topic.
![Round the Dice Decimals 1](/sites/default/files/styles/medium/public/thumbnails/content-id-10438-icon.png?itok=eJOkIfXd)
problem
Round the Dice Decimals 1
Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?
![Greater Than or Less Than?](/sites/default/files/styles/medium/public/thumbnails/content-id-10587-icon.jpg?itok=MorTnk2R)
problem
Greater Than or Less Than?
Use the numbers and symbols to make this number sentence correct. How many different ways can you find?
![Matching Fractions, Decimals and Percentages](/sites/default/files/styles/medium/public/thumbnails/content-01-02-game1-icon.jpg?itok=ioSoBwxf)
problem
Matching Fractions, Decimals and Percentages
Can you match pairs of fractions, decimals and percentages, and beat your previous scores?
![Fractional Triangles](/sites/default/files/styles/medium/public/thumbnails/content-02-04-penta3-icon.jpg?itok=6i8hOuSG)
problem
Fractional Triangles
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
![Fractional Wall](/sites/default/files/styles/medium/public/thumbnails/content-id-4519-icon.png?itok=6MeAr1BB)
![Fraction Match](/sites/default/files/styles/medium/public/thumbnails/content-id-6938-icon.png?itok=Je0O9lK1)
problem
Fraction Match
A task which depends on members of the group noticing the needs of others and responding.
![Bryony's Triangle](/sites/default/files/styles/medium/public/thumbnails/content-id-7392-icon.jpg?itok=L3-YhaCi)
problem
Bryony's Triangle
Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?
![Matching fractions](/sites/default/files/styles/medium/public/thumbnails/content-id-8283-icon.gif?itok=NNFU_a6q)
problem
Matching fractions
Can you find different ways of showing the same fraction? Try this matching game and see.
![Tumbling Down](/sites/default/files/styles/medium/public/thumbnails/content-id-13728-icon.png?itok=ovhAwmmm)
![Round the Dice Decimals 2](/sites/default/files/styles/medium/public/thumbnails/content-id-10428-icon.png?itok=HHqx05u0)
problem
Round the Dice Decimals 2
What happens when you round these numbers to the nearest whole number?
![Orange Drink](/sites/default/files/styles/medium/public/thumbnails/content-id-2420-icon.png?itok=n_S92HDv)
problem
Orange Drink
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?
![Doughnut percents](/sites/default/files/styles/medium/public/thumbnails/content-id-6945-icon.jpg?itok=KYyqyhQF)
problem
Doughnut percents
A task involving the equivalence between fractions, percentages and decimals which depends on members of the group noticing the needs of others and responding.
![Chocolate](/sites/default/files/styles/medium/public/thumbnails/content-98-01-bbprob1-icon.gif?itok=ZVBQ8Cwf)
problem
Chocolate
There are three tables in a room with blocks of chocolate on each. Where would be the best place for each child in the class to sit if they came in one at a time?
![Pumpkin Pie Problem](/sites/default/files/styles/medium/public/thumbnails/content-00-11-penta3-icon.png?itok=FdWXK1jP)
problem
Pumpkin Pie Problem
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?
![Fractions in a Box](/sites/default/files/styles/medium/public/thumbnails/content-02-03-penta5-icon.jpg?itok=n0Ea1sPn)
problem
Fractions in a Box
The discs for this game are kept in a flat square box with a square hole for each. Use the information to find out how many discs of each colour there are in the box.
![Andy's Marbles](/sites/default/files/styles/medium/public/thumbnails/content-id-2421-icon.jpg?itok=I5-GZOOW)
problem
Andy's Marbles
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.
![Forgot the Numbers](/sites/default/files/styles/medium/public/thumbnails/content-00-09-penta2-icon.gif?itok=80HGuyzk)
problem
Forgot the Numbers
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?
![Route Product](/sites/default/files/styles/medium/public/thumbnails/content-id-5632-icon.png?itok=5pb5D9Vi)
problem
Route Product
Find the product of the numbers on the routes from A to B. Which route has the smallest product? Which the largest?