(Answer time: 80 minutes)
Class name _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Fill in the blanks. (2 points for each question, ***20 points)
1.65+360 ÷ (20-5), calculate () first, then (),
Finally (), the number is ().
2.72+68+ 132= + ( ○ )
35×92+35×8= × ( ○ )
3.0.057 is changed to: 405.76 writing:
4.23.853 Accurate to about one percent, with one decimal place about.
5.245600000 was rewritten as "100 million".
6.6.02m = () cm 3km10m = () km.
6.05 kg = () kg () g
7. Arrange the following figures in descending order.
0.7 0.706 0.76 0.67 0.076
8. Triangle can be divided into () triangle, () triangle and.
() triangle.
9. The base angle of an isosceles triangle is 80 and the top angle is ().
10. It takes 4 minutes to saw a piece of wood in half, and () minutes if it is sawed into eight pieces.
Second, choose the serial number of the correct answer and fill it in brackets. (4 points)
1.3 The number consisting of one, 4% and five thousandths is ().
( 1)0.345 (2)3.045
(3)3.4005 (4)3.405
2. The decimal number greater than 0.2 and less than 0.4 is ().
( 1) 1 (2) 10
(3) 100 (4) countless.
3. Make an equilateral triangle with at least ().
( 1) 1 (2) 2
(3) 3 (4) 4
4. Insert a colored flag of 10 on one side of the 90-meter-long runway (inserted at both ends), every two adjacent colored flags.
The distance between them is () meters.
( 1)9 (2) 10
(3) 16 (4)8
Third, the judge. (4 points)
1.4.5 and 4.50 have the same size and the same counting unit. ( )
2. The sum of the two acute angles of an obtuse triangle is less than 90 degrees. ( )
3. Any two triangles can be combined into a quadrilateral. ( )
4. When calculating the addition and subtraction of decimals, both ends of decimals should be aligned. ( )
Fourth, calculation. (36 points)
1. Oral calculation:
25×4= 360÷36= 0.3÷ 100= 120×6=
58-58= 1000×0.0 13= 48+32= 84÷4=
480÷60= 3- 1.4= 0÷78= 2.5+0.9=
8.76-4.27= 45×20= 420+28= 10 1×28=
8×9+8= 125×7×8= 7×5÷7×5= 10―2.3―2.7=
2. Calculate the following questions vertically and check them. (4 points)
10-3.06 1 1.36+8.54
3. Calculate with decimals. (4 points)
5m 23cm+3m 5mm10kg-3kg 600g
4. Calculate the following questions, and simplify what can be simplified. (18)
( 125+7)×8 3200÷25×4 3.27+6.4+2.73+4.6
25×44 6.45-0.58- 1.42 12×(324-285)÷26
Sixth, operation. (10)
1. Draw an isosceles triangle and a right triangle in the grid, and draw their heights. (4 points)
2. Fill in the blanks and draw a picture. (6 points)
Seven, solve the problem. (26 points)
1. The road repair team built a road, which was 3.4 kilometers on the first day, 0.6 kilometers more than the next day. How many kilometers were built in two days? (4 points)
2. From a city to the provincial capital, the speed of taking the expressway is 90km/h, which takes 2 hours, and the speed of taking the ordinary highway when returning is 70km/h, which takes 3 hours. How many kilometers is it more to take the ordinary highway than the expressway? (5 points)
3.5 Students went to visit the space exhibition, and * * * paid the entrance fee of 60 yuan, and each student used 2 yuan. How much did it cost per person? (5 points)
4.24 Students play games in a circle on the playground, and the distance between every two students is 2m. What is the circumference of this circle? (5 points)
5. The tourism expenditure of Li Hong's family in recent years is as follows. (7 points)
200 1 2002 2003 2004 2005 2006
Amount/yuan1600 2000 2500 3100 3800 4500
(1) Make a broken line statistical chart according to the above data.
(2) Observing the statistical chart, what changes do you find in Li Hongjia's annual tourism expenditure?
(3) What is the tourism expenditure of Li Hongjia this year?
(4) What other math questions can you ask? Please give a detailed answer.