Luckily the '4' still works, and so do the basic operations.

Can you make the numbers 1 to 20 using the buttons that still work?

Bob's spilt coffee on his calculator and has broken most of the buttons!

Luckily the '4' still works, and so do the basic operations.

Can you make the numbers 1 to 20 using the buttons that still work?

Luckily the '4' still works, and so do the basic operations.

Can you make the numbers 1 to 20 using the buttons that still work?