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續四則計算 (二)

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• 計算四則混合算式題。 • 解答四則混合應用題。 • 培養學生先估算後計算。 • 培養學生的數字感。

標籤: 乘先乘除後加減加數字感混合算式減除multiplytimesconventional order multiplication and division before addition and subtractionaddplusnumber sensemixed operationminussubtractdivide

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