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小數的乘法

Authored by WFPS鄭景云 WFPS鄭景云

Mathematics

4th Grade

Used 1+ times

小數的乘法
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. 在剛剛的課堂裡,小數乘以整數的直式裡,需要對齊小數點嗎?

要對齊小數點

不用對齊小數點

不用寫直式

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. 在「0.7×6」的直式裡,應該先寫什麼?

Media Image
Media Image
Media Image

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. 「6.4×2」的答案是多少呢?

128

12.8

1.28

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. 「6.4×5」的答案是多少?

32.0

3.2

320

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

5. 左邊的兩個式子在計算上有差別嗎?差別在哪裡?

沒有差別,我把右邊式子的10.7當107個0.1來算,算法都一樣

有差別,我把右邊式子的10.7當107個0.1來算,只是最後把小數點點回去。

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