Want to be excellent at math? Try Crazy Math Game. Let your kids learn math Funny! Efficiently!

MATH FLIGHT:Practice basic arithmetic with activities that include Add,Subtract,Multiply,Divide, Mix Add/Subtract, Mix Multiply/Divide or Mix-Up. Use and Print arithmetic operation tables,7 difficulty levels. Focus on a specific number, Print reports

RekenTest is freeware educational software to practice arithmetic skills. Supports basic arithmetic operations with whole numbers, decimals, money problems, percentages and fractions. Available in English, Spanish, Portuguese and Dutch.

A calculator original, multifunctional and friendly. Calc-Express is a calculator tape specific for complex expressions with square roots, powers the n and other functions specific to each need. The graphics are appealing.

Adds data curve fitting, interpolation and data smoothing functions to Excel. Functions include polynomial fits, several types of splines, and local regressions. Filters include moving average, Gaussian smoothing and median filtering.