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音节-Lisa
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Converting Decimals to Fractions的副本
Activity
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根據百分率找數量（二）: 例4的副本
Activity
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根據百分率找數量（二）: 例1的副本
Activity
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根據百分率找數量（一）:例1的副本
Activity
音节-Lisa
Fraction multiplication的副本
Activity
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Converting Decimals to Fraction的副本
Activity
音节-Lisa
Simplifying Fractions的副本
Activity
音节-Lisa
