2.2 hours and 45 minutes = () hours. (Fill in the score)

5. The circumference of a circle is about () times the diameter of the same circle.

7. After a number is increased by 20%, it is 360, and this number is ().

8. It took Team A 10 days and Team B 12 days to complete a project, and the working efficiency of Team A was ()% of that of Team B. ..

9. Cut a circle into an approximate rectangle. It is known that the length of a rectangle is 6.28cm and the area of a circle is () cm2.

2. True or false (draw "√" correctly and "×" wrongly). )

1. If the perimeters of two circles are equal, then the areas of the two circles are equal.

( )

2. The germination rate of a newly cultivated seed is 120%. ( )

( )

The diameter is twice the radius. ( )

Third, multiple-choice questions (fill in the letters of the correct answer (). )

[ ]

2. What is the percentage of 7m greater than 4m? The correct formula is [].

A.(7-4)÷7

B.(7-4)÷4

c . 1-4 \7

D.7÷4- 1

[ ]

A. the meaning is the same as the calculation result

B: the meaning is the same, but the calculation results are different

C. Different meanings, same calculation result

D. the meaning is different from the calculation result.

Wrong. [ ]

A. Boys are 20% less than girls

B 125% of girls are boys.

C. There are 20% more girls than boys.

Four, calculate the following questions (can be simplified as simplified)

5. Find the area of the shaded part in the figure.

Six, column calculation of the following questions

VII. Application Problems

A pig farm raised 400 pigs this year, 25% more than last year. How many pigs were raised last year? (column equation solution)

3. Miss Wang keeps 2500 yuan in the bank for one year, with an annual interest rate of 4.27%. How much principal and interest can he get back after one year?

There are still 3.2km kilometers to be repaired. How many kilometers is this road?

5. For a single project, Party A needs 10h and Party B needs 15h. If both parties cooperate, more.

6.62.8cm thin iron wire just wound 10 turn on the round iron bar. What is the cross-sectional radius of this round iron bar?

7. Xiaohua read a book and plans to finish it in 10 days. In fact, he reads three more pages than planned every day. As a result, he finished it two days in advance. How many pages are there in this book?

There's something wrong with this.

Only math.