数学运算知识点题库

If a=2 and b=3, a+b+2=______.

A . six B . seven C . eight D . Nine

A survey(调查) about the activity Helping the Homeless Children was made in Lucy and Lily's class. They and their 48 classmates took an active part in this activity. According to the form below， _____ students gave away school things.

A . 24 B . 15 C . 25

Thirty-three and forty-seven makes _____.

A . sixty B . seventy C . eighty D . ninety

The socks are four dollars for one pair. So I need_______ dollars to buy five pairs.

A . eight B . twelve C . twenty D . thirty

Which sentence is correct?

A . Multiplied 5 by 6. B . Subtract 4 to 9. C . Plus 3 and 9. D . Add 2 and 8 to make 10.

请按要求完成下列各题。

（1） When my dad celebrated his 31st birthday, I was 8 years old. Now, my dad is twice (两倍）the age I am. What's my age now?
（2） A bottle of juice sells at the price of 1 yuan. The juice is worth 0. 9 yuan more than the bottle itself. How much does an empty bottle cost?
（3） Can you add operations to the formula to make it correct?
8__4__2__9=25
（4） Mr. and Mrs. Bing have 7 daughters, each of their daughters has a brother. How many children do Mr. and Mrs. Bing have?
（5） What's the next number?
4、6、10、18、34、

—What is ________ and ________?

—It's twenty,

A . eight; twelve B . ten; thirteen C . five; nine D . fourteen; four

—What's thirty and sixty?

—It's n.

Alice is interested in Chinese Calligraphy (书法) .New school term is coming, many school things are on sale in Dangdang during March. Therefore, she can only spend _______________ buying all the things below on the website.

Name	Price in the store (each)	Price online (each)
2 Writing brushes	￥30.00	40% off
Ink sticks(墨)	￥50.00	30% off
Paper	￥55.00	No change
Ink stones(砚)	￥120.00	Half

On Sale! March 1st - 3 1st, a 15-yuan voucher(代金券） is available if you spend at least ￥150

A . ￥153 B . ￥168 C . ￥171

With the development of science, many kinds of robots can help us do a lot of work. For example, deebots (地宝) are smart enough to help us sweep and mop(拖地) the floor. Linda wants to buy two deebots on special days, one is for herself and the other is for her mother. She should save yuan than usual.

The price on usual days

￥1300

The price on special days

￥900

Good news: If you spend more than 1000 yuan in buying deebots, you

will enjoy a 10% off for the whole list on special days.

A . 1800 B . 980 C . 1620

Here is a survey about how 1000 students from No. 3 Middle School go to school on weekdays. One third of the students going to school by bike are girls. Then according to the form below, __________________ boys go to school in the same way.

By bus	By bike	By car	On foot
40%	？	36%	9%

A . 150 B . 100 C . 50

There are two bookshelves A and B. There are 450 books on them. If we take 25 books from A to B, the numbers of the books are the same. Do you know how many books there are on bookshelf A and bookshelf B originally?

A . 250; 200 B . 225; 215 C . 200; 250 D . 215; 225

—There are five books, T, U, V, W and X, stacked on top of one another on a shelf. Book U is two books below W and immediately on top of X. V is three books above U. Which book is on the top of the pile and which is at the bottom?

—

Look at the lines drawn inside the squares, and name two squares with parallel lines.

The survey is about what students do at 9: 00 a. m. on Sunday students swim at9: 00 a. m. on Sunday among 500 students.

Swimming	Running	Dancing	Playing basketball
?	10℅	25℅	25℅

A . 100 B . 200 C . 300

This is Meimei's after-class activity plan, read it and find out how many minutes she spends on it on weekends in a month?

After-class Activities in a Week
Time	Football	Jogging	Music
On weekdays	30 minutes	15 minutes	15 minutes
On weekends	40 minutes	20 minutes	30 minutes

A . 240 minutes B . 90 minutes C . 360 minutes

During the Spring Festival, Li Lei got a red envelop with 500 yuan. He spent his lucky money on his hobbies. According to the following table, how much money was left?

Watching a movie in Wanda Cinema with some friends	50 yuan/each
Buying 3 storybooks	20 yuan/each
Buying 2 rooster stamps	50 yuan/each
Notes: One of his friends paid for him when watching the movie.

A . 190 yuan B . 240 yuan C . 340 yuan

2×6=12 （用英语表达算式。）

24÷3=8 （用英语表达算式。）

_______ minus(减去)three is four.

A . One B . Eight C . Seven D . Nine

数学运算 知识点题库

数学运算知识点题库