Interactive Grades 3–4 math mystery game with a 100-question randomized question bank, designed for engaging review, math centers and early finishers. Turn math practice into a space investigation with The Case of the Missing Moon Rock! Students solve math challenges, unlock evidence and use their clues to crack the mystery of the missing lunar sample. The game includes 100 questions across five math skill areas: • Multiplication • Division • Addition & Subtraction • Fractions • Place Value Choose between Quick Mission (10 questions, approximately 10–15 minutes) or Full Case (15 questions, approximately 15–25 minutes). Questions are selected from the larger 100-question bank each playthrough. A smart anti-repeat rotation helps reduce recently used questions, giving the game strong replay value and keeping practice fresh. Students are guided by LUMI, a friendly Lunar Mission AI, with optional browser voice feedback. The game supports Individual, Pairs and Whole Class play modes. Perfect for: • Grades 3–4 / ages 8–10 • Math centers • Early finishers • Math review lessons • Small groups and partner work �� Homeschool math practice This resource is delivered as a downloadable ZIP containing an interactive browser-based HTML game. No student account is required. Simply extract the ZIP and open the included HTML file in a modern web browser. This is a fictional space-themed educational resource and is not affiliated with or endorsed by NASA.