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Education

6th -

8thgrade

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國中數學2下1-2

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10 questions

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  • 1. Multiple Choice
    1 minute
    1 pt

    某家庭有六個小孩,年齡由大到小每兩個小孩的年齡差均為兩歲,若六個小孩的年齡和為96歲,則下列敘述哪一個是錯誤的?

    老大為23歲

    排行老二為19歲

    排行老四為15歲

    排行老么為11歲

  • 2. Multiple Choice
    1 minute
    1 pt
    Image

    如圖

    28

    31

    34

    37

  • 3. Multiple Choice
    1 minute
    1 pt

    一等差數列其首項為125,第11項為85,若前n項的和為Sn,則Sn的最大值為多少?

    2004

    2008

    2012

    2016

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