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7th

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國中數學一上3-1

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10 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
    當x=-2時,則(x-3)‧(2x+1)‧x所代表的值是多少?_x000B_
    30
    -30
    15
    -15
  • 2. Multiple Choice
    1 minute
    1 pt
    下列哪一個選項可以用5b表示?_x000B_
    b+5
    b×b×b×b×b
    b+b+b+b+b
    一個十位數字為5,個位數字為b的二位數
  • 3. Multiple Choice
    1 minute
    1 pt
    五個連續整數,若設最中間的數為x,則最大的數為何?_x000B_
    x+4
    x+3
    2x
    x+2
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