The final examination paper of mathematics in the first volume of the fourth grade of People's Education Press:
I'll just fill in (19 points)
1. The distance from the earth to the sun is about 149450000. This number reads: (). Rounding ellipsis? Billion? The mantissa at the back is about () billion.
2、754? The quotient of 25 is () digits, 748? The quotient of 82 is () digits.
3. Right angle equals () right angle, and fillet equals () right angle.
4. Fill in ○? & gt？ 、? & lt？ Or? =? .
43650 ○ 38900 100000 ○ 99999
504 003 ○ 504 300 ○ 600 000 ○ 600 000.
5. Fill in the appropriate number in □.
9□875? 65438+ million 39 □ 000000000? 3.9 billion
6. In the picture on the right, is it known? 2=30? So what? 1= () is the angle of ().
7. The speed of sound is 340 meters per second, so you can write (). (Question 6)
8, the product of the largest two digits and the smallest three digits is ().
9. () is 12 times 144 times, and () is 7 times 104 times.
10, known 14? 18=252, 140? 180=( )。
Second, let me judge: (Right? Wrong number? ) (5 points)
1, greater than 90? This angle is obtuse. ( )
2. The straight line is always longer than the light. ( )
3. The product of three digits multiplied by two digits must be two digits. ( )
4. Only one set of quadrangles with parallel opposite sides is a trapezoid. ( )
The number of five million, fifty thousand and seven thousand is 50057000. ( )
I will choose (choose the serial number of the correct answer and fill it in brackets. ) (12 points)
1, you can draw () ray after a little; You can draw a straight line after two o'clock.
A, 1 B, 2 C, countless
2. Grasp the two opposite corners of the parallelogram and pull in opposite directions. Its circumference is ().
A, lengthen B, keep C, shorten
3.7 o'clock sharp, the smaller angle between the hour hand and the minute hand on the clock face is ()
A, acute angle b, right angle c, obtuse angle d, right angle
4. The following questions, calculation results and 140? 20 is not equal to ().
280 pounds? 40 B、 1400？ 20 degrees Celsius, 560 degrees? 80
5, three digits divided by two digits, the quotient is ().
A, two numbers b, one number c, maybe one number or two numbers.
6. Xiao Ming makes tea for the guests, taking water 1 minute, boiling water for 6 minutes, washing teacups for 2 minutes, taking tea 1 minute, and making tea 1 minute. Xiao Ming should arrange the above things reasonably, and it will take at least () a few minutes for the guests to have tea as soon as possible.
A, 7 minutes b, 8 minutes c, 9 minutes
Fourth, I can count! 30 points
1, oral calculation (5 points)
400? 8= 120? 70= 450? 50= 172-48= 20? 26=
9? 500= 940? 20= 560+400= 54? 30= 800? 16=
2. estimate. (4 points)
600? 5 1 ? 15 1? 30 ? 432? 19 ? 58? 38 ?
3, vertical column calculation, including belt★ inspection (20 points)
207? 34= 336? 2 1= ★546? 65=
150? 14= 580? 25= ★75? 46=
Five, I can practice! (8 points)
1. Draw parallel lines and vertical lines of known straight lines through point A .. (4 points)
2. Draw a 105 with a triangle? Angle. (2 points) 3. Draw the height of the picture below. (2 points)
3. According to the statistical table, complete the statistical chart and answer the questions.
Statistics of books donated by fourth and fifth grade students in a primary school in Shehong County to Hope Primary School
Story books, composition books, fairy tales and science books.
Level 4 22 38 19 26
Grade 5 35 27 18 15
Statistics of books donated by fourth and fifth grade students in a primary school in Shehong County to Hope Primary School
(1) Complete the above statistical chart according to the statistical table.
(2) The fourth grade _ _ _ _ donated the most books, and the first grade * * * donated the most books.
(3) What other information can you find?
Six, I'll solve the problem! (20 points)
1. Xinhua Bookstore brought 685 new books, and every 25 books were bundled into a package. How many packages can a * * * bundle? How many copies are left?
2. Galaxy Supermarket sent 10 package of towels. 240 pieces per pack. 1420 pieces sold, how many pieces are left?
Grandpa Zhang bought three lambs and spent 75 yuan. He wants to buy five more lambs. How much will it cost?
4. A car walked from Lanzhou to Yongdeng for 2 hours, with a speed of 75 kilometers per hour, and it is still 36 kilometers away from Yongdeng. How far is it from Lanzhou to Yongdeng?
5. A computer installation team installed 226 computers on 26th, more than originally planned 18. How many computers were originally planned to be installed every day?
The second part (100)
1, six figures, rounded to the nearest 200,000. The maximum number of this number is (), and the minimum number is () (4 points).
2. Pancakes in a pan, frying only two cakes at a time. If it takes 6 minutes to fry a cake (3 minutes on both sides), it takes at least () minutes to fry 5 cakes. (3 points)
3. Use 5, 4, 2, 8, 0, 0 to form six digits as required, and write at least two for each item. (6 points)
(1) Neither 0 is read. ( ) ( )
(2) Read only a 0. ( ) ( )
(3) Read two zeros. ( ) ( )
4. As shown on the right, is it known? 1=65 degrees, (6 points)
then what 2=( ), ? 3=( )。
A grain store sold 280 kg, 330 kg and 297 kg of rice in the first three days of April. How many kilos of rice can this store sell in June and February? (5 points)
6, 2 18 students go for an autumn outing. If you rent a bus, you can only take 35 people per car, and rent 200 yuan. If you rent a van, each car can only take 8 people, and you can rent it for 80 yuan. How to rent a car is a good deal? How much will it cost? (6 points)