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2×5＝ |
8×3＝ |
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5×6＝ |
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9×6＝ |
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5×1＝ |
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4×1＝ |
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6×5＝ |
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6×1＝ |
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10×1＝ |
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6×6＝ |
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9×1-1＝ |
20- (9×2)＝ |
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9×4＝ |
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8×6＝ |
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