Make problem solving fun with amazing brain-teasing puzzles! Developing critical thinking skills has never been more fun with
...Make math fun with amazing brain-teasing puzzles! Developing critical thinking skills has never been more fun with Train Your
...Helps you calculate equations that make your knees tremble. This title presents activities, puzzles, challenges, tips & tricks to boost brain power. It features a section on Great Brains, telling you about the interesting stories of maths geniuses & t