
1上 3-1 代數式的化簡
Authored by 康軒數位 康軒數位
Mathematics
7th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
五個連續整數,若設最中間的數為x,則最大的數為何?
x+4
x+3
2x
x+2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
小慧帶了一些錢出門,先買了3個單價x元的蛋塔,2杯單價15元的奶茶,後來又借50元給好朋友小茹,結果身上還剩下100元,請問小慧帶了多少錢出門?
(3x+130)元
(x+180)元
(3x+180)元
(3x+80)元
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列各式何者正確?
-8+x=-8x
5+x=5x
x÷2=2x
15×x=15x
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
雞兔同籠,若雞有x頭,兔有5頭,則共有多少隻腳?
(x+5)隻
(2x+20)隻
(2x+10)隻
5x隻
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪一個敘述可以列式為2x+3?
小康買了2顆粽子和3粒包子;若粽子一顆x元,共需付多少錢?
若每人拿走2顆金棗,還剩3顆,假設共有x人,則原本有多少顆金棗?
小軒有3塊牛舌餅,分給兩個人,一人分到多少塊?
租3部車,最後一部車只坐2人,設每部坐x人,共多少人?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有一個二位數的十位數字為x,個位數字為3,若在x與3之間插入數字8而成為三位數,則此三位數可用下列哪一個表示?
x+8×10+3×100
x×100+3×100+8
x+3×10+8×100
x×100+8×10+3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
清清與班上其他30位同學參加校外教學活動,活動中買飲料共花了y元,買點心共花了360元,買遊樂券共花了900元,則每個人平均應分攤多少元?
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