Free Mental Arithmetic Software

Calcul by Luzius Schneider

Calcul will help your elementary school students practice mental arithmetic or to do fractions. Choose addition, subtraction, multiplication, division or fractions; then set the range of numbers and the number of calculations for an exercise. The program shows you two numbers or fractions respectively, and you enter an answer. Right or wrong answers get audio feedback and there's a pie chart to show your percentage of correct responses.

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Mathe-Trainer by Spieleverlag Schilken

This Math-Trainer runs on every java-Handy and trains mental arithmetic. The handy asks arithmetic problems and the faster you are the more points you get. Twelve types of the first rules of arithmetic you can choose from. Scores are stored in handy. It can also calculate the prima factors or GCD of given numbers.

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DNA Helix ScreenSaver by AltarSoft.com

Rotating DNA Helices screen saver. View rotating DNAs on your screen.

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Virtual Drive Creator? by J. A. Associates

Create Virtual Drives from long paths, it's easy! Type the full path or browse to the path via the Drive and Folder Lists. Choose a drive letter from the ?Available Virtual Drive Letters? list, Click [Add Virtual Drive] to create the virtual drive, or Double Click the letter. Make CD-ROMs obsolete, copy the contents of the CD-ROM to a folder on your Hard Drive and install it from there, then run the Virtual CD from your hard drive.

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Repellent by Easy Desk Software

Repellent can solve your email and Internet virus worries with the click of a button, you can disable all VB and Java applets and scripting, as well as all Registry files. These are the viruses and worms that your virus scanner is trying to find and kill. Theset viruses do the real damage, like "Melissa", "KAK". A virus scanner can miss a new virus because it does not know the signature yet. Repellent simply disables the scripting capabilities.

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