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CMM‑Math is a Chinese multimodal mathematics dataset containing over 28,000 high‑quality samples covering 12 grades from primary school to high school. It includes diverse question types such as multiple‑choice and fill‑in‑the‑blank, with detailed solutions. Some questions involve visual context, making the dataset more challenging. The dataset is split into a training set (22,000+ samples) and an evaluation set (5,000+ samples).