An excellent program for mixing addition and subtraction facts from 0-12, Addition & Subtraction features an interactive teacher that records progress and adjusts the difficulty of the problems. If help is needed there is an addition/subtraction problem chart that can be accessed at any time. Players can play against the clock in single player mode, or challenge each other. Choose problems that are all addition, all subtraction or mixed. A scorecard reports progress and shows problems to practice. Click on the ? for help on getting started, setting a timer, problem solving, set (working with one group of numbers at a time), how to use the answer chart (addition and subtraction tables), or finding out your score. (Ages 6 and up) Minimum System Requirements: Windows 95/98 or higher. 166 MHz Pentium processor or faster. 50 MB hard disk space. 24 MB RAM. 4X CD-ROM drive. 640 x 480 16-bit color video. 16-bit sound card. Keyboard & mouse. Macintosh OS 7.5.5 or higher (OS X in Classic mode only). PowerPC 601 processor or faster. 50 MB hard disk space. 24 MB RAM. 4X CD-ROM drive. 640 x 480 16-bit color video. Keyboard & mouse. Copyright (C) Muze Inc. 2005. For personal use only. All rights reserved.
