Intensive Training of Maths(4B)

江苏张家港市东渡实验学校 钱 丹

I. Calculate.

II. Fill in the blanks.

There are ____ eighths in a whole.and ____ make a whole.

The multiple of 2 and 5 is__________.

The multiple of 3 and 6 is__________.

__________is the least common multiple of 2, 3 and 5.

__________is the least common multiple of 6, 2 and 5.

The least common multiple of the denominators ofandis___________.

_______ is the multiple of the denominators ofand

III. Match each fraction with its simplest form.

IV. Solve the problems.

1. There is a birthday cake. Lucy eatsof the cake. Her brother Jason eats the rest of the cake. How much does Jason eat?

3. 492mlof water is poured into 12 similar empty glasses. How much water is in each glass?

4. Jenny bought 351 leek seeds on January 12th and 540 on January 20th. She needs to plant all of the seeds. She plants 11 seeds in each hole. How many holes will she have to dig when she finishes planting?

5. A school bought 450 desks at ¥86 each. How much did the school spend on the desks?

6. There are 97 rows of seats in a theater. Each row has 48 seats.How many seats are there in the theatre?

7. There are 25 cows. Each cow eats 12kgof grass every day. How many kilograms of grasmes will these cows eat in 30 days?

8. Here are 5 cakes. Jenny divide these cakes for 10 girls equally.How much of the cake can each girl get?

9. There are 45 chickens and ducks on a farm altogether.of them are chickens and the rest of them are ducks. How many chickens are there? How many ducks are there?

10. 3mof a rope is yellow, 4mof it is white and 7mof it is blue.What fraction of the rope is blue?

12. A road was built by Team A, Team B and Team C. Team A builtof the road. Team B builtof the road, and Team C builtof the road. Which team built most of the road? Which team built least of the road?

13. It rainedd ogs and cats yesterday.of the students were late for school.of the students failed to come to school. What fraction of the students got to school on time?

14. In a middle school, there are 1200 students.of the students wear glasses. How many students do not wear glasses in that middle school?