
0102 第三章複習
Authored by 許菡容 許菡容
Mathematics
7th Grade
Used 1+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 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
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
老師有明信片若干張,分給 x 個學生,若每人分 3 張,還剩下 2 張,請問共有多少張明信片?
3x+2
3×(x+2)
2×(x+3)
5x
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
關於式子的化簡,下列何者正確?
-8+x=-8x
3+x=3x
x÷2=2x
5×x=5x
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
已知苡瑄今年 13 歲,爸爸 35 歲,則再經過多少年之後,爸爸的年歲恰好是苡瑄的兩倍?
7
9
11
13
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若 A=2x+3,B=3x-2,則 2A+B=?
5x+1
7x+4
8x-1
x-5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
x=-2 是下列哪一個一元一次方程式的解?
3x+1=2
-2x+4=1
5x+8=1
7x+13=-1
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
雞有 x 隻,兔有 4 隻,則牠們共有多少隻腳?
x+4
4x
4x+8
2x+16
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