4-2-1整數的小數倍

Math Response

一袋米重 2.48 公斤。10袋重多少公斤？

Type answer here

Correct Answer: 24.8

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Math Response

一袋米重 2.48 公斤。100袋重多少公斤？

Type answer here

Correct Answer: 248

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Math Response

25 的 $$\frac{1}{10}$$ 倍是多少？用小數說說看。

Type answer here

Correct Answer: 2.5

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Math Response

25 的 $$\frac{1}{100}$$ 倍是多少？用小數說說看。

Type answer here

Correct Answer: 0.25

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Labelling

填入正確答案

Drag labels to their correct position on the image

25

二

2.5

一

三

0.25

Math Response

2.75×10 ＝?

Type answer here

Correct Answer: 27.5

Deg^°

Rad

Math Response

2.75×100 ＝?

Type answer here

Correct Answer: 275

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Rad

Math Response

2.75×1000＝?

Type answer here

Correct Answer: 2750

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Math Response

752x $$\frac{1}{10}$$ =?

Type answer here

Correct Answer: 75.2

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Math Response

752x $$\frac{1}{100}$$ =?

Type answer here

Correct Answer: 7.52

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Rad

Math Response

752x $$\frac{1}{1000}$$ =?

Type answer here

Correct Answer: 0.752

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Math Response

一袋麵粉重 3 公斤，0.6袋麵粉是多少公斤？列式並計算

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Correct Answer: 3\times0.6=1.8

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Rad

Math Response

一公尺塑膠棒重51公克。同樣的塑膠棒，0.8公尺重多少公克？列式並計算

Type answer here

Correct Answer: 51\times0.8=40.8

Deg^°

Rad

Math Response

一公尺塑膠棒重51公克。同樣的塑膠棒，2.4公尺重多少公克？

Type answer here

Correct Answer: 51\times2.4=122.4

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Rad