2 out of 3
Can you make doughnuts by matching these fractions, decimals and percentages?
2 out of 3
Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?
2 out of 3
Take three consecutive numbers and add them together. What do you notice?
2 out of 3
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
3 out of 3
These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?
2 out of 3
What can you see? What do you notice? What questions can you ask?
3 out of 3
How many solutions can you find to this sum? Each of the different letters stands for a different number.
