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Hard-to-solve Math Puzzles |
AU$12.95
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This book contains 92 pages of maths puzzles by Derrick Niederman that don't need higher levels of maths but a keen insight and a sharp brain to solve them. |
| Suitable for: * 11-15 years * Over 15-adult * Educational |
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Mensa Math & Logic Puzzles |
AU$16.95
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This book contains over 90 pages of puzzles and solutions by Tuller & Rios that are self contained and can be solved with a healthy dose of logical thinking and a touch of simple arithmetic. An official Mensa publication |
| Suitable for: * Over 15-adult * Educational |
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