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2下 1-2 等差級數

Authored by 康軒數位 康軒數位

Mathematics

8th Grade

Used 31+ times

2下 1-2 等差級數
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪一個是等差級數?

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

計算1+3+5+7+……+19的和,則下列哪一個列式是正確的?

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在1~100中,6的倍數的總和是多少?

880

816

810

804

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在-7與17之間插入m個數,使其為等差數列,若此等差數列的和為120,則m=?

24

22

10

12

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

阿芳最近開了一家泡沫紅茶店,開張當天獲利200元,第二日獲利300元,第三日獲利400元,……。以後每日的獲利皆增加100元,求該泡沫紅茶店營業多少日後,共可獲利17000元?

15日

16日

17日

18日

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

某家庭有六個小孩,每個相鄰的小孩其年齡差均為兩歲,若六個小孩其年齡和為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

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