Do you need a calculator to work out your shopping bill? Do those pesky decimal points get in the way? Would you like to get some practice in doing decimal arithmetic in your head? You can now use your Palm Pre to improve your speed by practising with Decimal Brain. 8 different levels with 10 randomly selected decimal arithmetic questions in each level. High scores at each level are remembered, so you can improve your speed and your accuracy by trying to beat your personal best!