
1212 3-1 前測
Authored by 許菡容 許菡容
Mathematics
7th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知花生糖 1 顆 2 元,梅子糖 2 顆 1 元。小詩買花生糖及梅子糖共 60 顆,花了 60 元。假設花生糖買了 x 顆,則梅子糖買了多少顆?
2x
60-x
60+x
x-60
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若 x=3,則下列式子何者錯誤?
2x+3=9
3x-5=4
4x-15=3
3x=9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有一個算式為 9x+6,若文字符號所代表的數為 7,則算式 9x+6=?
63
65
67
69
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
小明去年的體重為 64 公斤,今年比去年胖了 x 公斤,則小明今年的體重是多少公斤?
64x
64/x
64-x
64+x
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若百貨公司球鞋定價 x 元,打七五折後售價為何?
75x
7.5x
0.75x
(75/10) x
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
關於式子的化簡,下列何者錯誤?
3a-a=3
8b÷4=2b
-2x-4x=-6x
-5y+3y=-2y
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-3x 可以用下列哪一個式子表示?
-3+x
x-3
(-x)+(-x)+(-x)
(-x)+x+x
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