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数学问题集

Authored by Shiqi Jiang

Mathematics

7th Grade

数学问题集
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果一个角等于它的余角的2倍,那么这个角的补角为

30

60

120

135

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

正方体的平面展开图如图所示,则原正方体中与“斗”字所在的面相对的面上的字是

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如图,已知∠AOB = α,∠AOC = β,ON平分∠AOC,OM平分∠BOC,则∠MON的度数是

不能计算

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列计算正确的是

3a-a=3

5xy-2xy=3xy

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

10

5

2

-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

用代数式表示“a的平方的2倍与b的差的一半”为

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