数学运算 知识点题库

Three and five is ________.
A . seven B . eight C . nine D . ten
—If a=4, b=5, what's the answer to the question a+2ab+1=?

         .

A . Forty five B . Forty fifth C . Twenty three D . One hundred and twenty one
— What 's four and      ?

— It's nine.

A . zero B . three C . five
Frank,a Grade 8 student, plans to go mountain climbing with his parents and his66-year-old grandparent. According to the price list, they need to pay _____  yuan for the tickets.

The Price of the Tickets

Adult

(aged 65 and above)

Adult

(aged under 65)

Child

(aged 6-17)

Child

(aged under 6)

¥ 30

¥40

¥ 20

Free

A . 130 B . 160 C . 140
Four and five is _____________.
A . six B . eight C . seven D . nine
Mrs. Green will buy something on sale today. All the things will be 20% off. According to the table, she may spend ________________ dollars less than usual.

Shopping

List

Potatoes

(2kilos)

Tomatoes

(1 kilo)

Eggs

(3 kilos)

Meat

(2 kilos)

Usual price

($ kg)

1.5

2

5

2.5

A . 5 dollars B . 20 dollars C . 25 dollars
We have made a survey among 1,000 students from a middle school about their favourite food. ______________ students like fruits according to the form.

Kind of food

Chocolate

Banana

Cookie

Apple

Percentage

(百分比)of the students

20%

30%

15%

A . 350 B . 650 C . 800 D . 300
According to Chinese tradition, the old usually give the young lucky money during the Spring Festival, Tom got 2000 yuan from his relatives, and he spent some of them. How much money does he have in his pocket now?

Buying gifts for his parents

Half of all the money

Buying clothes for himself

Three fifths of the rest of the money

A . 400 yuan B . 1000 yuan C . 250 yuan
Mr. Li suggests the students should spend 2. 5 hours improving   the four basic skills   after class every week. According to Mr. Li's form, Jane has spent    minutes in all writing every month.

Skill

Listening

Speaking

Reading

Writing

Percentage

30%

15%

35%

?

A . 30 B . 120 C . 90
Li Lei spends three hours on the Internet every week. The following form shows the things that he does every week, also, he spends ten minutes more playing computer games than watching movies. According to the form, Li Lei spendsminutes studying on the Internet every month.

Taking    online classes

Watching movies

Looking    for information about study

Playing computer games

90 minutes

?

?

Forty minutes

A . 440 B . 110 C . 360
The chart shows how long the students in Class Three do these sports. It takes them three hours to do all the sports. So they spend      minutes playing soccer.

Kung fu

Jogging

Hiking

Thai Chi

Playing soccer

10%

25%

30%

20%

?

A . 27 B . 34 C . 15
—Jack does four kinds of activities every school day. He spends 3 hours doing these things every day.

—According to the form below, he spends                   on sports activities a day.

Activities

Running

Learning the piano

Reading books

Playing basketball

Time (a day)

30 minutes

45 minutes

1 hour

?

A . 45 minutes B . 75 minutes C . 375 minutes
If post is 1234, "top" will be          .
A . 231 B . 421 C . 314 D . 124
—How can you make 7 out of three 6s?

—Mr. Black has five daughters and each daughter has a brother. How many children does Mr. Black have?

.

12-6=6(用英语表达算式。)
10+9=19 (用英语表达算式。)