10×2×3,5×4×3,6×2×4,5×6×3,4×7×2,7×6×3,5×6×2,6×2×3,2×8×7,4×5×9。
12÷4÷2,10÷5÷5,14÷2÷7,15÷3÷5,18÷6÷3,21÷3÷7,24÷6÷4,25÷5÷1,26÷2÷13,35÷7÷5。
10×2×3,5×4×3,6×2×4,5×6×3,4×7×2,7×6×3,5×6×2,6×2×3,2×8×7,4×5×9。
12÷4÷2,10÷5÷5,14÷2÷7,15÷3÷5,18÷6÷3,21÷3÷7,24÷6÷4,25÷5÷1,26÷2÷13,35÷7÷5。
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