小數的乘法
Quiz
•
Mathematics
•
4th Grade
•
Practice Problem
•
Medium
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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?
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
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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