什麼是數字的位值?

南一國小數學3下ch5-3

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Mathematics
•
3rd Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
數字的位值是指在一個數字中,每個數字所代表的數量,根據它在數字中的位置而定。例如,在數字 345 中,3 的位值是 300,4 的位值是 40,5 的位值是 5.
2.
FLASHCARD QUESTION
Front
如何將 10 加到 25?
Back
25 + 10 = 35.
3.
FLASHCARD QUESTION
Front
什麼是加法的交換律?
Back
加法的交換律是指在加法中,數字的順序不影響結果。例如,3 + 5 = 5 + 3.
4.
FLASHCARD QUESTION
Front
如何將 15 減去 7?
Back
15 - 7 = 8.
5.
FLASHCARD QUESTION
Front
什麼是數字的組合?
Back
數字的組合是指將數字分成不同的組合來進行計算。例如,將 10 分成 5 和 5.
6.
FLASHCARD QUESTION
Front
如何將 4 乘以 3?
Back
4 x 3 = 12.
7.
FLASHCARD QUESTION
Front
什麼是乘法的分配律?
Back
乘法的分配律是指一個數字乘以兩個數字的和等於這個數字分別乘以這兩個數字後再相加。例如,2 x (3 + 4) = 2 x 3 + 2 x 4.
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