How good are your problem solving math skills? Are you able to think out of the box? Take on these challenging problem sums written by Singapore Mathematics Olympiad Trainers and see how well you fare! You will be exposed to a wider range of mathematical problems that require various analytical and problem solving skills. Packed with 104 pages of questions and worked solutions. If you really need help, there's always the step-by-step answers at the back. Age appropriate 9 years old and above.