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1219 3-1 練習

Authored by 許菡容 許菡容

Mathematics

7th Grade

Used 1+ times

1219 3-1 練習
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

小寶的爺爺年齡是小寶的 2 倍多 22 歲,若小寶是 x 歲,則小寶的爺爺的年齡該如何表示?

 2x-22

2x+22

(x+22)2

(x+22)/ 2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若 x=-4 時,-3x+5 的值為多少?

7

-7

17

-17

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若 x=-7,則 -3/4(1-5x)=? 

-28

-27

-26

-25

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若庭瑋口袋裡有 x 個拾元硬幣和 6 個伍元硬幣,則庭瑋口袋中共有多少元?

x+6

16x

10x+30

6x

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

設 x 表任意一奇數,則下列何者必為偶數?

3x

x+5

2x+3

3x+8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

小寶爺爺的年齡比小寶的爸爸多了 40 歲,而小寶爸爸的年齡是小寶年齡的 2 倍,若小寶今年是 x 歲,則爺爺的年紀該如何表示?

x+40

(x+40)×2

2x+40

2×40+x

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

可麗餅屋的培根可麗餅每個 x 元,紅豆可麗餅比培根可麗餅便宜 5 元,若小美買了 5 個培根和 4 個紅豆的可麗餅,則她須付多少元?

9x-20

9x+20

9x-25

9x+25

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