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| 關鍵字 | The Sherlock Bones Practice Workbook Activity Book Quizzes and Games Puzzles Mathematics STEM STEAM P1-P2 P3-P4 |
Sherlock Bones and Dr. Catson are entangled in an arithmetic adventure. They must follow a teasing trail of addition and subtraction-themed puzzles, and it's up to the reader to solve each sum, all in the hope of foiling Professor Moriratty's evil plan.This charming activity book features Sherlock's 'magic device', which reveals the answer to each puzzle when placed over a moire area, allowing children to test their numeracy skills again and again.
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