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Mathematics

7th

grade

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1上 1-3 整數的乘除與四則運算

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  • 1. Multiple Choice
    1 minute
    1 pt

    下列各算式,何者的結果是正數?

    (-30)×(-25)×(-20)

    (-5)×(-6)×(-7)×(-8)×(-9)

    (-4)×(+9)×(-15)×(+35)

    (-91)×(-87)×(+32)×(-39)×(+45)×(-69)×(-28)

  • 2. Multiple Choice
    1 minute
    1 pt

    香雞排一份40元,珍珠奶茶4杯100元,小軒買香雞排一份,珍珠奶茶一杯,則可用下列哪一個算式求小軒應付的錢?

    (40+100)÷4

    40+100÷4

    40+100

    40+100×4

  • 3. Multiple Choice
    1 minute
    1 pt

    A=12345×12345-2345×12345,則下列有關A的敘述何者正確?

    A是一個八位數

    A最後四位皆為0

    A是一個奇數

    A是一個質數

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