1-4簡化計算

Fill in the Blanks

Math Response

乙杯有多少公升的水？

Type answer here

Correct Answer: \frac{1}{3}

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Math Response

丙杯有多少公升的水？

Type answer here

Correct Answer: \frac{2}{3}

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Math Response

把甲、乙、丙三杯水都倒入空桶中，倒完後共有幾公升的水？ 用一個算式列式

Type answer here

Correct Answer: 0.4+\frac{1}{3}+\frac{2}{3}

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Multiple Select

$$0.4+\frac{1}{3}+\frac{2}{3}$$ 這個算式中，哪兩個數字可以先相加，會比較好算？

• $$0.4$$

• $$\frac{1}{3}$$

• $$\frac{2}{3}$$

Math Response

$$0.4+\frac{1}{3}+\frac{2}{3}$$ 的答案是多少？

Type answer here

Correct Answer: 1\frac{2}{5}

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Math Response

請根據豆豆的算式算出答案

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Correct Answer: 78

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Math Response

請根據妙妙的算式算出答案

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Correct Answer: 78

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Multiple Choice

豆豆和妙妙算出來的結果一樣嗎？

• 一樣

• 不一樣

Math Response

想想看，要怎麼算才會比較快算出答案？算算看。

$$1\frac{2}{3}+2.4+3.6=$$ ?

Type answer here

Correct Answer: 7\frac{2}{3}

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Math Response

想想看，要怎麼算才會比較快算出答案？算算看。

$$130\div3\times12\div8=$$ ?

Type answer here

Correct Answer: 65

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Math Response

按照以上觀念，寫出簡化過後的式子

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Correct Answer: \left(4.8+5.2\right)\times7\frac{1}{5}

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Math Response

$$4.8\times7\frac{1}{5}+5.2\times7\frac{1}{5}=\left(4.8+5.2\right)\times7\frac{1}{5}=?$$

Type answer here

Correct Answer: 72

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Math Response

大水管１分鐘注水幾公升？

Type answer here

Correct Answer: 5\frac{3}{4}

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Math Response

小水管１分鐘注水幾公升？

Type answer here

Correct Answer: 3\frac{1}{4}

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Math Response

兩根水管要同時注水幾分鐘？

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Correct Answer: 1\frac{1}{3}

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Math Response

兩根水管同時注水 $$1\frac{1}{3}$$ 分鐘，一共可注水幾公升？ 用一個算式列式，要怎麼列？

Type answer here

Correct Answer: 5\frac{3}{4}\times1\frac{1}{3}+3\frac{1}{4}\times1\frac{1}{3}

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Math Response

兩根水管同時注水 $$1\frac{1}{3}$$ 分鐘，一共可注水幾公升？

Type answer here

Correct Answer: 12

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Math Response

想想看，要怎麼算才會比較快算出答案？算算看

Type answer here

Correct Answer: 6.5

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Math Response

想想看，要怎麼算才會比較快算出答案？算算看

Type answer here

Correct Answer: \frac{3}{5}

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