The fourth grade elementary school next semester mathematics midterm examination questions one.
First, fill in the blanks. (2 points for each question, ***24 points)
1. According to 14? 35=490, write the number of the following questions directly.
14? 350=( ) 140? 350=( )
2. A bottle? Coke? 250 ml, 20 bottles of * * * () ml, or () liters.
3. 498? 2 1 can be regarded as ()? () to estimate, the result is probably ().
4. in? Fill it in? & gt，& lt？ Or? =? .
4 liters, 3999 ml, 7000 ml, 6 liters
25? 28 25? 4? 7 160? 2 1 160? 20+20
5.4 Children shake hands with each other once and shake hands () once; They send each other a letter and another letter.
6. Spell () triangle or () triangle with the two triangles on the right.
7. The lengths of two sides of a triangle are 5cm and 8cm respectively, and the length of the third side must be greater than () cm and less than () cm.
8. In an isosceles triangle, one of its base angles is 45 degrees? So its vertex angle is ()? From an angle, it is a () triangle.
9. What is the sum of the internal angles of a quadrilateral? The sum of the internal angles of the Pentagon is ()? .
10. On the right are () parallelogram and () trapezoid.
1 1. Combine the following formulas into a comprehensive formula.
40? 3= 120 480? 120=4 56+4=60
12. A measuring cup contains 400 ml of water. Put in two identical glass balls, the water surface scale indicates 600ml, and the size of each glass ball is equivalent to () ml of water.
Second, the eyes are golden. (Right? , wrong number? ) (5 points)
1 these three numbers. 2, 5 and 8 can form six different three-digit numbers. ( )
2. making? Cup piano? The cup is the same, the water volume is different and the sound is different. ( )
3. Three internal angles of any triangle can make a right angle. ( )
4.460+40? 5 becomes (460+40) in brackets? 5. Operation sequence changes. ( )
5.？ Count to 24 o'clock? If it's 1, 3, 5, 7 four playing cards, don't you know? 24? Yes ( )
Third, merit-based admission. (Choose the serial number of the correct answer and put it in brackets) (5 points)
1. And 25? 120 product inequality formula is ().
A.250? 12 B. 25？ 40? 3 C. 25？ 4+30
2. One liter of water just fills five paper cups, so the capacity of a paper cup is ().
200 ml, 500 ml
3. The base and height of the parallelogram are corresponding, and the height corresponding to the base 40 in the right picture is ().
10
4. () combination of two hosts, one male and one female, four boys and three girls.
A.7 B.8 C. 12
5. 20 for carelessness? (□+2) Wrong to 20? □+2 The difference between the result he got and the correct result is ().
A.2 B.38 C.40
Fourth, be careful. (24 points)
1. Write the number directly. (4 points)
75? 4= 600? 50= 9 1-45= 15? 5-2=
44? 30= 6 12? 6= 72? 8? 3= 10- 10? 5=
2. Use a simple method to calculate. (8 points)
73+ 142+27+68 258-36-64
(80+8)? 125 75? 10 1-75
3. Calculate the following questions. (12)
16? 40-900? 30 (56+ 13? 4)? 12
240? [ 15? (35 1-347)] 368- 132+ 129? 34
Fifth, practice. (9 points)
1. The distance between two parallel lines in the picture below is 2 cm. (3 points) Draw an acute triangle, a right triangle and an obtuse triangle with a base height of 2 cm.
2. Cut a straw with a length of 14 cm into three sections (each section is cm in length) to form an isosceles triangle. How can you cut it? Come up with three different cutting methods and fill in the table below. (6 points)
The first, the second and the third.
Bottom (cm)
Waist circumference (cm)
Sixth, solve the problem. (30 points)
1. An isosceles triangle glass broke two corners. Please calculate the degrees of the other two angles. (4 points)
2. A manuscript is 5400 words, and Fangfang types 105 words per minute on average. She started typing this manuscript at 8: 08. Can she finish typing this manuscript at nine o'clock? (5 points)
3. The fruit shop delivered 8 boxes of apples 18 and 22 boxes of bananas, each weighing 15kg. (6 points)
(1) How much do apples and bananas weigh? (2) How many kilograms are bananas heavier than apples?
4. Ticket prices of Swan Lake Park are as follows:
The number of ticket buyers (persons) is greater than1-50 50-100100.
Admission price per person (RMB) 18 15 10
Three classes in grade four of Hong Kong Road go to the park for a spring outing, with 48 students in Class A, 50 students in Class B and 52 students in Class C. What is the most reasonable way to buy tickets, and how much is the minimum? (5 points)
The bus from Funing to Yancheng only stops at Goudun, Cao Yan and Shanggang. How many different tickets does this bus need to prepare for the round trip? (5 points)
The fourth grade elementary school next semester mathematics midterm examination questions two.
First, the oral calculation questions. (12)
100-37= 25? 5? 8= 50? 60= 640? 8=
69+30 1= 28? 4? 7= 25? 8= 24? 5=
25? 404= 100? 25? 4= 90? 45? 2= 45+55? 5=
Second, I'll fill it in (1 point per grid, *** 15 points).
1 and 0.88 are pronounced as: (), and 0.090 is simplified as (). Compared with these two decimal places, () is larger.
2. If Shanghai is around 30? In the direction, Beijing is in the direction of Shanghai.
The oil exploration team is located 40 kilometers north of a city. An oil well was drilled about 45 kilometers in the direction. Please mark the location of the oil well on the plan. (2 points)
4. Use letters to express the law of multiplication distribution: a? (B+C)=()
5、8? 37? 125=( )? ( )? (), this is the application of () law.
6, a children's coat 48 yuan, a pair of pants cheaper than the coat 9 yuan, this pair of pants () yuan. A skirt is more expensive than trousers, 5 yuan. This skirt is () yuan.
Third, true or false (10) (correct in brackets? , wrong number? )
1、 1 17? 3+ 1 17? 7= 1 17? (3+7)。 ( )
2、20? 55=20? (50+5) is the application of multiplicative associative law. ( )
3、20? 55=20? 5? 1 1 Apply the multiplication distribution law. ( )
If one tenth is expressed in decimal, it can be written as 0. 1. ( )
5. According to the nature of decimals, 0.0 1 1 is the same size as 0. 1 10. ( )
Four, the calculation problem (27 points)
1, parting calculation (9 points)
( 15+20)? 2 203- 135? 9 26? 4- 125? five
2. Calculate the following questions in a simple way (18 points).
425+ 14+ 186 67+25+33+75 103? 12
2000? 125? 8 250? 13? 4 99? 38+38
Five, solve the problem (6? 6=36 points)
1. The highway from a county to the provincial capital is 200 kilometers long. The speed of a car on the expressway is 100 km/h, and it is 50 km/h on the ordinary highway. How much time does it take to take the adjustment road from the county to the provincial capital than to take the ordinary highway?
2. Miss Wang has to correct 48 compositions, which have been corrected 12. If you grade 9 articles per hour, how many hours will it take to complete?
3. Kobayashi's height 124 cm is twice as high as his cousin's, and his uncle is three times higher than his cousin's. How many centimeters is uncle tall?
The school swimming pool is 50 meters long. Xiaogang swims six times at a time. Ask him how many meters he swims each time.
5. Uncle Li has a vegetable field (as shown on the right). How many square meters is this vegetable field?
The fruit shop sent 8 boxes of apples and 8 boxes of bananas. Apples per box 18kg, bananas per box 25kg. How many kilograms of fruit did a * * * send?
Open the window (10 point)
There are two layers of books on the shelf, *** 164. If you take out 18 books from the upper level and put them on the lower level, the number of books on the two levels is the same. How many books are there on the shelf and the lower shelf?
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