# Algebra Meltdown

Game Goals In this maths game you have been recruited by Lissaman Industries to assist in one of their super-secret, ultra-dangerous research projects. As the new controller of the mighty Nuclear Generator, your job is to serve scientists waiting at the Generator's outlets. Be quick: the scientists are impatient to continue their work. The ultimate aim of the project is to construct a monstrous mega-machine known only as 'The Device'. How To Play Algebra Meltdown's action takes place across multiple level or 'shifts', each featuring a unique Nuclear Generator layout. Across the top of the screen is a rack dispensing 'raw atoms' between values -9 and +9 (B). If an atom passes through a machine, a nuclear reaction takes place and it's transformed by the operation shown (D). You direct the atoms through the tubes and machine by clicking switch boxes (E). Once a scientist receives the atom needed they run off-screen happy, and the next scientist walks to the front of the queue. Game Controls Related:  Numeracy and Maths

Radical Math Sumdog Sumdog > Sumdog's features > Games Sumdog's maths games are all free to play, whether you're at home or in school. (Why are they free?). Most of Sumdog's games are multiplayer - which means you can choose to play against other Sumdog users around the world. Although the games are all different, they all have one thing in common: you need to answer maths questions to make progress. Each game can be used to practise any of Sumdog's topics - so you never need to be bored while practising your maths! Pop Tune A creative game, where up to 4 players work together to make beautiful music. Drag the correct answer onto the grid to place your notes - and hear the tune coming together as you play! More about Pop Tune... | Play Pop Tune Bunny Hop It's a race through the house to reach a patch of juicy carrots, with up to four hungry rabbits taking part. Answer correctly to make your bunny faster... but watch out for the hazards along the way! More about Bunny Hop... | Play Bunny Hop Tower Climber Street Racer

History of Fractions Did you know that fractions as we use them today didn't exist in Europe until the 17th century? In fact, at first, fractions weren't even thought of as numbers in their own right at all, just a way of comparing whole numbers with each other. Who first used fractions? Were they always written in the same way? How did fractions reach us here? The word fraction actually comes from the Latin "fractio" which means to break. From as early as 1800 BC, the Egyptians were writing fractions. Here is an example of how the numbers were made up: Could you write down in hieroglyphics? The Egyptians wrote all their fractions using what we call unit fractions. Here is one fifth. Can you work out how to write one sixteenth? They expressed other fractions as the sum of unit fractions, but they weren't allowed to repeat a unit fraction in this addition. But this is not: The huge disadvantage of the Egyptian system for representing fractions is that it is very difficult to do any calculations. was called uncia