A knitted scarf uses three balls of wool. How many balls of wool do I have at the end of the day?
Think of any whole number. Each time you perform a sequence of operations on it, what do you notice about the divisors of your answer?
Can you solve this 'KANGAROO' alphanumeric subtraction?
Manipulate one algebraic fraction to solve another.
Lauren and Thomas tell their ages in terms of sums of squares. Can you work out how old they really are?