1212 3-1 前測

1212 3-1 前測

7th Grade

10 Qs

quiz-placeholder

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1212 3-1 前測

1212 3-1 前測

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

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許菡容 許菡容

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10 questions

Show all answers

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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