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五年级～小数的简便计算#同城教育
2026-06-20
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Key Point:五年级小数的简便运算。大家好，我是学诚的宥宥。今天讲解一道关于小数乘法简便运算的提高题。看题目：1.999乘以370加上19.99乘以6加上1999乘以0.57等于多少？
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