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比和比例

Authored by CHEAH Moe

Mathematics

5th Grade

CCSS covered

Used 9+ times

比和比例
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪项是正确的?

12 : 15 = 2 : 5

10 : 40 = 1 : 4

21: 30 = 7 : 10

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

上图显示亚当和莫之哈的年龄。杰克的年龄没有显示出来。


杰克比亚当大3岁。

5 年后,杰克的年龄与莫之哈的年龄比是多少?

4 : 5

4 : 9

5 : 4

9 : 4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

五红班的男学生人数和女学生人数的比是 1 : 2,男学生有14个。五红班共有多少个人?

14

28

42

56

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

下图显示一个长方形,宽度和周长的比是 1 :7。这个长方形的长度是多少 cm?

12

30

60

84

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在一块地里,用来种菜和种花的面积的比是 1 : 1。花园的面积是81 平方米,这块地的面积是多少p'f'm?

41

81

162

324

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哈林买了一箱人心果,其中45个是完好的。腐坏的人心果的数量和完好的人心果的数量的比是 1 : 9。 箱子里有多少个人心果?

5

9

50

450

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

参加舞蹈班的人数和参加华文学会的人数的比是 1 : 4。参加华文学会的人数比舞蹈班的多了45个,有多少个人参加华文学会?

15

30

45

60

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