The Apex Maths CD-ROMs and books offer extension and enrichment for all through problem solving and mathematical investigations. Apex Word Problems CD-ROM 6 provides a database of over 600 mathematical problems suitable for ages 10-11. These can be selected according to level of difficulty, operation and topic, allowing you to create and customise differentiated activity sheets for consolidation and practise of problem solving skills. Note Apex Word Problems is t compatible with Windows 7.