Which option does not have the same answer as $$\frac{1}{4}\times0.75+\frac{3}{4}\times\frac{3}{4}$$ ? Options: $$\frac{1}{4}\times\left(\frac{3}{4}+\frac{3}{4}\right)$$ , $$\left(\frac{1}{4}+\frac{3}{4}\right)\times\frac{3}{4}$$ , $$\left(\frac{1}{4}+\frac{3}{4}\right)\times0.75$$ , $$\frac{1}{4}\times\frac{3}{4}+\frac{3}{4}\times\frac{3}{4}$$

$$\frac{1}{4}\times\left(\frac{3}{4}+\frac{3}{4}\right)$$

Which algorithm can quickly calculate the result of $$7\frac{12}{25}+2\frac{17}{39}+3\frac{13}{25}+4\frac{22}{39}$$ ?

$$\left(7\frac{12}{25}+3\frac{13}{25}\right)+\left(2\frac{17}{39}+4\frac{22}{39}\right)$$ .

國小數學六下單元1 Flashcards

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1.

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1公斤的香瓜比西瓜貴多少元？

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33元

2.

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4.2根

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219本

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14.4平方公尺

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7.

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如圖正方形和平行四邊形的面積一樣大，這個平行四邊形的底是多少公分？

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