1. China's cultivated land area is about125,930,000 hectares, which is read as (125,930,000) hectares and rewritten as "10,000 hectares" in units of (125,930,000) hectares.

2.4.25 hours =(4) hours (25) minutes; At 2: 30, the angle between the clock and the minute is 60 degrees.

3. Observe and complete the sequence: 0, 1, 3, 6, 10, (15), 2 1, (28).

A number consists of four ones, eight tenths and four percent. This number is (4.84) and a decimal place is (4.8).

5. The north and south of a city are about 60 kilometers long, and the length on a scaled map is about () cm. On this map, the east-west length of the city is 18 cm, so the actual distance between things in the city is about () kilometers.

6. Draw with a compass. When the distance between the two legs of the compass is (1) cm, a circle with a diameter of 2 cm can be drawn, and the area of this circle is (3. 14) cm 2.

7. Rotate the lower rectangle around the edge of 15cm to get a (cylinder) with a surface area of () square centimeters and a volume of () cubic centimeters.

8. The shaded area of the parallelogram in the figure is () square centimeters.

9. The picture shows the profitability of the organizing committees of the last six Olympic Games. In these six Olympic Games, the organizing committee has the largest total profit (fill in the name of the city).

10. Choose three of the four numbers 4,0, 1 2 to form a three-digit number, so that it can be divisible by 2,3,5 at the same time. This number can be (120). (Just fill in one correct answer)

1 1. Fill in the appropriate company name in brackets.

Xiao Ming is 1.58 (m) tall and weighs 40 (kg). The area of his bed is about 3 (square meters) and he sleeps 10 (hours) every night. The area of his bedroom is about 45 square meters.

12. (24)% = 4 ÷ 5 = 24 (%) = (8):10 = (0.24) decimal.

Two, careful scrutiny, careful analysis (65438+ 0 points per question, ***6 points)

13. The height of Xiao Qiang is 1.4 meters. He must be able to wade safely across the river with an average depth of 1.35 meters. ( √)

14. The largest angle in the triangle is not less than 60 degrees. (√)

15. If 14 of A is equal to 15 of B, then A must be less than B (A≠0) (√).

16. With the cooperation of two teams, a project can be completed in 6 days. If it takes 10 days for A to do it alone, it takes 15 days for B to do it alone. (√)

17. the attendance rate of three classes in grade six on Friday is: the attendance rate of class one is 98%; The attendance rate of Class Two is 97.5%; The attendance rate of Class Three is 100%. So Class Three has the largest attendance. (×)

18. Because 78 is less than 14 15, the decimal unit of 78 is less than 14 15. (×)

Third, choose carefully and repeatedly (2 points for each question, *** 16 points)

19. Rewrite the formula × (a+4) into × a+4, and the result of the new formula is better than the original formula (b).

A. big B. small 2 C. big 2 D. big 4

20. The following domestic events that occur in leap years are (c)

A. China joined the WTO on 200 1.

In 2003, China launched the space shuttle.

C in the 2004 Athens Olympic games, China athletes made brilliant achievements.

D In June 2007, the first braking of Chang 'e-1 satellite in recent months was a complete success.

2 1. Use a line with a length of 16 cm to enclose a rectangle. If the length and width are prime numbers, its area is (c) square centimeters.

a . 6 b . 10 c . 15d . 2 1

22.A's 15 is equal to B's 14, and 25% of A is equal to 20% of C. Comparing the numbers A, B and C, which of the following results is correct? ( )

a > b > c b c > b > a c a > c > b d c > a > b。

23. The school numbers each new student, setting the last 1 as a boy and 0 as a girl, and "1997 1332 1" as "No.32 boy in Class 3, Grade 1, enrolled 1997". Lv Fang is the 28th girl in Class Two, Grade One who entered school in 2007. Her student number is ().

a . 2007 13280 b . 2007 1228 1 c . 2007 12280d . 2007 1328 1

25. The following scores can be converted into finite decimals ().

38 、4 15 、 1524 、 1725 、2548 、36

A.4b 3c 2d 1

26. In the activity of "I walk with the Olympics and the sunshine grows with me", a proofreader conducted a participation survey on 50 students in Class 8 (1) and Class 2. The results are as follows: The following statement is true ().

(1) Class Two

A. The number of people who like table tennis (1) is more than that of class (2). B. The number of people who like badminton (2) is more than the class (1).

C more people like football (1) than class (2). D more people like basketball (1) than class (2).