![Would You Rather?](/sites/default/files/styles/medium/public/thumbnails/content-02-06-penta5-icon.jpg?itok=6Yu3hsnA)
problem
Would You Rather?
Would you rather: Have 10% of £5 or 75% of 80p? Be given 60% of 2 pizzas or 26% of 5 pizzas?
![First Connect Three](/sites/default/files/styles/medium/public/thumbnails/content-id-5865-icon.png?itok=04WHK5zo)
problem
First Connect Three
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
![Birdwatch](/sites/default/files/styles/medium/public/thumbnails/content-id-7553-icon.png?itok=lxcdn1gB)
problem
Birdwatch
Have a look at this data from the RSPB 2011 Birdwatch. What can you say about the data?
![Domino sets](/sites/default/files/styles/medium/public/thumbnails/content-id-9965-icon.png?itok=KWnxHhoz)
![Shape Draw](/sites/default/files/styles/medium/public/thumbnails/content-id-10368-icon.jpg?itok=O7ATWUBX)
![Always, Sometimes or Never? Number](/sites/default/files/styles/medium/public/thumbnails/content-id-12672-icon.png?itok=UuM6k13s)
problem
Always, Sometimes or Never? Number
Are these statements always true, sometimes true or never true?
![The Moons of Vuvv](/sites/default/files/styles/medium/public/thumbnails/content-01-07-penta3-icon.gif?itok=xHgSC_ox)
problem
The Moons of Vuvv
The planet of Vuvv has seven moons. Can you work out how long it is between each super-eclipse?
![Always, Sometimes or Never? Shape](/sites/default/files/styles/medium/public/thumbnails/content-id-12673-icon.png?itok=HQQCVqVU)
problem
Always, Sometimes or Never? Shape
Are these statements always true, sometimes true or never true?
![Plenty of Pens](/sites/default/files/styles/medium/public/thumbnails/content-02-06-penta4-icon.jpg?itok=Q8PYItBO)
problem
Plenty of Pens
Amy's mum had given her £2.50 to spend. She bought four times as many pens as pencils and was given 40p change. How many of each did she buy?
![Number Lines in Disguise](/sites/default/files/styles/medium/public/thumbnails/content-id-13452-icon.jpg?itok=w1sVtOJy)
problem
Number Lines in Disguise
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
![Different Deductions](/sites/default/files/styles/medium/public/thumbnails/content-id-14164-icon.gif?itok=RVTkpWxK)
problem
Different Deductions
There are lots of different methods to find out what the shapes are worth - how many can you find?
![Factor Lines](/sites/default/files/styles/medium/public/thumbnails/content-02-10-penta5-icon.gif?itok=RIygcdS8)
problem
Factor Lines
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
![Cut Nets](/sites/default/files/styles/medium/public/thumbnails/content-id-2315-icon.png?itok=HAR3dDr-)
problem
Cut Nets
Each of the nets of nine solid shapes has been cut into two pieces. Can you see which pieces go together?
![Factor-Multiple Chains](/sites/default/files/styles/medium/public/thumbnails/content-id-5578-icon.png?itok=_LqJl9mK)
problem
Factor-Multiple Chains
Can you see how these factor-multiple chains work? Find the chain which contains the smallest possible numbers. How about the largest possible numbers?
![Next size up](/sites/default/files/styles/medium/public/thumbnails/content-id-6931-icon.png?itok=5dh9oKgq)
![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.
![Counting Cogs](/sites/default/files/styles/medium/public/thumbnails/content-id-6966-icon.gif?itok=-yx-oxgg)
problem
Counting Cogs
Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?
![Making Cuboids](/sites/default/files/styles/medium/public/thumbnails/content-01-06-bbprob1-icon.jpg?itok=lQCNW_Mi)
problem
Making Cuboids
Let's say you can only use two different lengths - 2 units and 4 units. Using just these 2 lengths as the edges how many different cuboids can you make?
![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?
![Mystery Matrix](/sites/default/files/styles/medium/public/thumbnails/content-01-09-penta2-icon.png?itok=QvnkPfB_)
problem
Mystery Matrix
Can you fill in this table square? The numbers 2 -12 were used to generate it with just one number used twice.
![Price Match](/sites/default/files/styles/medium/public/thumbnails/content-id-13274-icon.jpg?itok=HsJrcuO_)
![Ten Hidden Squares](/sites/default/files/styles/medium/public/thumbnails/content-id-2654-icon.jpg?itok=DtKAVnoL)
problem
Ten Hidden Squares
These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?
![Two and Two](/sites/default/files/styles/medium/public/thumbnails/content-01-06-six2-icon.png?itok=r2AsNoHS)
problem
Two and Two
How many solutions can you find to this sum? Each of the different letters stands for a different number.
![Quadrilaterals](/sites/default/files/styles/medium/public/thumbnails/content-99-09-penta4-icon.gif?itok=PY9ONihh)
problem
Quadrilaterals
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
![Finding 3D Stacks](/sites/default/files/styles/medium/public/thumbnails/content-id-13273-icon.jpg?itok=sOTlaF7H)