You may also like

Consecutive Numbers

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Roll These Dice

Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?

Domino Square

Use the 'double-3 down' dominoes to make a square so that each side has eight dots.

Buying a Balloon

Age 7 to 11
Challenge Level

Lola bought a balloon at the circus. She paid for it using six coins.

How much might the balloon have cost?

What is the largest amount Lola could have paid?
What is the smallest amount Lola could have paid?

Imagine that Lola has two different types of coin.
How much might the balloon cost now?
Can you find all the possible prices? How do you know you have found them all?

Which of your answers seems a reasonable amount to pay for a balloon?