
擴分 Mastery
Authored by 林小仔 林小仔
Mathematics
5th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
什麼是擴分的應用?
擴分的應用是將一個數字相加的過程。
擴分的應用是將一個數字分解成較大的數字相乘的過程。
擴分的應用是將一個數字分解成較小的數字相加的過程。
擴分的應用是將一個數字分解成較小的數字相乘的過程。
2.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
如果一個數字擴大了5倍,擴分後的數字是多少?
擴大5倍後的數字是原數字的5倍
擴大5倍後的數字是原數字除以5
擴大5倍後的數字是原數字乘以5
擴大5倍後的數字是原數字加上5
3.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
一個長方形的長是8厘米,寬是4厘米,如果將長和寬都擴大2倍,新的長和寬分別是多少?
{'length': 10, 'width': 5}
{'length': 12, 'width': 6}
{'length': 16, 'width': 8}
{'length': 14, 'width': 7}
4.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
擴分在日常生活中有什麼實際應用?
醫學手術中的器官擴張
建築設計中的空間擴展
音樂製作中的聲音擴散
烹飪中的份量調整
5.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
如果一個數字擴大了3倍,然後減去10,結果是多少?
6
3
9
12
6.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
一個三角形的底是6厘米,高是4厘米,如果將底和高都擴大3倍,新的底和高分別是多少?
新的高: 16厘米
{'新的底': '18厘米', '新的高': '12厘米'}
新的底: 24厘米
新的底: 12厘米
7.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
擴分和縮分有什麼不同之處?
擴分是加法,縮分是減法。
擴分是減法,縮分是加法。
擴分是除法,縮分是乘法。
擴分是乘法,縮分是除法。
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