The final examination paper and answer of the second volume of mathematics in the fourth grade of primary school.
fill (up) a vacancy
1.288 thousand nine hundred (), the approximate number in ten thousand years is ().
2. February of1990 is () days.
3. Both internal angles of a triangle are 65? This triangle is called () triangle.
4.2 6 o'clock = () hours.
5.4 hectares and 50 square meters = () square meters.
6. The parallelogram has an area of 72 square meters, a height of 6 meters and a base length of ().
7. 1.04 is pronounced as ().
Second, judge whether the following questions are true or false
1. The longer the sides of an angle are, the larger the angle is. ( )
The decimal point 2. 1.3 is shifted three places to the right, which is 1300. ( )
307,000 kilometers is 7 kilometers. ( )
4.8: 15 is 8 15. ( )
5. 14.090= 14.09。 ( )
3. Fill in ○? =,> or
1.0.94 hectares ○4900 square meters
2.506 billion 5.06 billion
3.0.35 Magnification 10 times ○0.35 Decimal point is shifted to the left by two places.
4. Number of days in leap year ○ 1994 days.
Fourth, arrange the following figures in descending order.
1.3.36 3.6 3.56 3.599
2.0.7 0.609 0.6908 0.66
Five, with a simple method to calculate
1.74? 53+47? 74 2.2 169? 642? 358
3.948+ 106 1+52+939 4. 125? 64
Six, off-type calculation
1.375+ 137? (69+68) 2.2.5+28.6+0.73
3.5.06? (3. 14+0.4) 4.4900? 20+ 15? 17
Seven, column calculation
1. A number minus 7.3 1 equals 14.29. What's this number?
2.2460 minus the product of 52 and 26, how much do you get?
Eight, application questions
1. A canteen bought a batch of rice, ate 158 Jin, and the remaining 32 Jin was four times less than the amount eaten. How many Jin of rice did you buy in the canteen?
The printing house printed 48 million books in 20 days. Printing tens of thousands of books in 35 days at this rate?
3. The weather temperature in May is 18 and 19 respectively. 、20? 、 19? 、2 1? 、23? There are still 20? What is the average daily temperature this week?
4. Eggs are packed in 144 boxes, with 504 eggs per box, if there are 648 eggs per box. How many boxes can be vacated in this way?
5. Reclaim triangular wasteland with bottom length 120m and height of 80m. How many hectares of land have been reclaimed?
Reference answer
1.1.288009 300,000 2.28 3. Acute angle 4.54 5.40050 6.12m7.1.04.
Second, 1. 3.？ 4.╳ 5.？
Three. 1.= 2.& gt3.& gt4.& gt
Fourth,1.3.6 >; 3.599 >3.56 >3.36
2.0.7 & gt0.6908 & gt0.66 & gt0.609
Verb (abbreviation of verb)1.7400 2.1169 3.3000 4.8000
6.1.376 2.31.83 3.1.52 4.5438+035.
Seven. 1.2 1.6 2. 1 108
8. 1.758 kg, 28,400 copies, 3.20 degrees, 4.32 boxes, 5.0.48 hectares.
Reference to the final examination paper of the second volume of fourth grade mathematics
First, please calculate. (8? )
0.38+0.06= ( 155+20)-65= 64.2+5.7= 543-27-73=
0.97-0.09= 12.8-9.86= 17.05-4.58 = 9800? 25? 4=
3.5+0.6= 5-0. 15= 4.35+5.36= 99? 66+66=
0.8 1+0.09= 0? 78= 50-20? 5= 35? 25? 4=
Second, please use recursive equation to calculate. ( 12? )
72-3? 8? 6 3600? (20-5) (450+27) ? (2 1- 18)
86.7-( 14.3-3.8 ) 60-( 12.87+0.75) 95.6-(26.3-8.3)
Can you think of a simple way to calculate the following questions? ( 12? )
25? 5+74? 5+5 6.74+ 12.62+24.38+3.26
87-2. 123-0.877 30.65-(7.65+5.4)
(40+8)? 125 32? 38+32? 62
Please fill in this form. ( 13? )
1, letters indicate that the multiplication distribution law is ().
2.0.28 has () 0.0 1, 1 yuan 2.4 points, and the decimal is () yuan.
3. The angle of160 degrees is smaller than the right angle by () degrees.
4. Expand by 0.36 to 100 times, and move the decimal point to the left by one place.
5.9.0968 One decimal place is (), two decimal places are (), and the integer is ().
6. In a right triangle, one acute angle is 550 and the other acute angle is ().
7. Tintin and Dongdong set up a square with toy figures, with 13 on both sides of the outermost layer. There are () toy people in the outermost layer, and there are () toy people in the whole square.
8. Is it 180 according to the sum of the interior angles of the triangle? Find the sum of the internal angles of the following two figures.
Trapezoidal () degree, pentagonal () degree.
Choose one of five or three (please write the serial number of the correct answer in brackets). ( 10? )
1, decimal 20.090 is simplified as ().
A, B, C, 2.9
2, 4.03 expanded to 100 times is ().
0.043 B、403 C、40.3
3. The two triangles of () can form a parallelogram.
A, equal bottom, equal height, equal area, exactly the same.
4, 0.72 is equal to ().
a、0.720 B、7.2 C、72 1000
5. 80.6 14 is pronounced as ().
A, 80.6 14b, 80.6 14.
c，80.6 14
Please give a sentence (right? , wrong number? . )(8? )
1, plus? 0? Or remove it? 0? The size of the decimal remains the same. ( )
2. Use three small wooden sticks with lengths of 13cm, 20cm and 6cm, and connect them end to end.
You can make a triangle. ( )
3.0.26 and 0.260 have different counting units. ( )
The straight line is a right angle. ( )
7. compare the size and fill in ○? & lt？ 、? & gt=? . (9? )
205 1000○2.05 0.7 9675438+000 8.75kg○875g
0.99 ○1.12 ○ 0/20 200 hectares ○2 square kilometers.
0.6 1. 1.067900079 million
Mark the location of each building on the floor plan according to the little girl's description. (8? )
9. Baihua Community 20xx? The average computer ownership per 100 households in 20xx is as follows. (8? )
1, Baihua Community 20xx? In 20xx years, the average ownership per 100 households increased by () units.
2. From () to (), the average computer ownership increased the least. The average number of computers has increased from () to ().
3. According to the information in the picture, you can predict that the average number of computers per 100 people in Baihua Community in 20xx is about ().
Taiwan Province.
Ten, solve the problem (12? )
In the first semester of the 20xx school year, the students in Class E donated all the money from selling waste products to Project Hope. Details are as follows:
A plastic bottle called waste paper can easily be thrown into the trash can.
Income (RMB) 47.75 25.2 68.4
1, how much is the money for selling waste paper in category e less than that for selling plastic bottles?
2. How much more does Class E spend on selling waste paper and trash cans than on selling plastic bottles?
3. How much did Class One * * of Class Four E donate to Hope Project?
answer
(Time: 60 minutes)
Class name score
First, please calculate. (8? )
0.38+0.06=0.44 ( 155+20)-65= 1 10 64.2+5.7=69.9 543-27-73=443
0.97-0.09=0.88 12.8-9.86=2.94 17.05-4.58 = 12.47 9800? 25? 4=98
3.5+0.6=4. 1 5-0. 15=4.85 4.35+5.36=9.7 1 99? 66+66=660
0.8 1+0.09=0.9 0? 78=0 50-20? 5=46 35? 25? 4=3500
Second, please use recursive equation to calculate. ( 12? )
72-3? 8? 6 3600? (20-5) (450+27) ? (2 1- 18)
=72-24? 6 =3600? 15 =477? three
=72-4 =240 = 159
=68
86.7-( 14.3-3.8 ) 60-( 12.87+0.75) 95.6-(26.3-8.3)
=86.7- 10.5 =60- 13.62 =95.6- 18
=76.2 =46.38 =77.6
Can you think of a simple way to calculate the following questions? ( 12? )
25? 5+74? 5+5 6.74+ 12.62+24.38+3.26
=(25+74+ 1)? 5 =(6.74+3.26)+( 12.62+24.38)
= 100? 5 = 10+37
=500 =47
87-2. 123-0.877 30.65-(7.65+5.4)
=87-(2. 123+0.877) =30.65-7.65-5.4
=87-3 =23-5.4
=84 = 17.6
(40+8)? 125 32? 38+32? 62
=40? 125+8? 125 =32? (38+62)
=5000++ 1000 =32? 100
=6000 =3200
Please fill in this form. ( 13? )
What is the multiplication distribution law of 1. letter ((a+b))? c=a？ c+b？ C) carry out the test.
2.0.28 has (28) 0.0 1. 1 yuan 2.4 points, and the decimal is (1.24) yuan.
3. The angle of160 degrees is (20) degrees smaller than the right angle.
4. Expand it by 0.36 to 100 times, and move the decimal point one place to the left, which is (3.6).
5.9.0968 The reserved decimal place is (9. 1), the reserved decimal place is (9. 10) and the reserved integer is (9).
6. In a right triangle, one acute angle is 550 and the other acute angle is (35).
7. Tintin and Dongdong set up a square with toy figures, with 13 on both sides of the outermost layer. There are (48) toy figures on the outermost layer and (169) toy figures on the whole square.
8. Is it 180 according to the sum of the interior angles of the triangle? Find the sum of the internal angles of the following two figures.
Trapezoidal (360) degrees, pentagonal (540) degrees.
Choose one of five or three (please write the serial number of the correct answer in brackets). ( 10? )
1, simplified decimal 20.090 is (b).
A, B, C, 2.9
2, 4.03 expanded to 100 times is (b).
0.043 B、403 C、40.3
3. Two triangles (c) can be combined into a parallelogram.
A, equal bottom, equal height, equal area, exactly the same.
4.0.72 is equal to (a).
a、0.720 B、7.2 C、72 1000
5.80.6 14 is read as (c).
A, 80.6 14b, 80.6 14.
c，80.6 14
Please give a sentence (right? , wrong number? . )(8? )
1, plus? 0? Or remove it? 0? The size of the decimal remains the same. (? )
2. Use three small wooden sticks with lengths of 13cm, 20cm and 6cm, and connect them end to end.
You can make a triangle. (? )
3.0.26 and 0.260 have different counting units. (? )
The straight line is a right angle. (? )
7. compare the size and fill in ○? & lt？ 、? & gt=? . (9? )
205 1000 & lt； 2.05 0.7 > 7100 8.75kg >: 875g.
0.99 & lt10.12 = 0.120 200 hectares =2 square kilometers.
4.205 >4.204 0.6 1 & lt； 1.0679000 = 79000
Mark the location of each building on the floor plan according to the little girl's description. (8? )
A plastic bottle called waste paper can easily be thrown into the trash can.
Income (RMB) 47.75 25.2 68.4
9. Baihua Community 20xx? The average computer ownership per 100 households in 20xx is as follows. (8? )
1, Baihua Community 20xx? In 20xx years, the average ownership per 100 households increased (65).
2. From (20xx) to (20xx), the average number of computers increased the least. From (20xx years) to (20xx years), the average computer ownership increased the most.
According to the information in the picture, you can predict that the average number of computers per 100 people in Baihua community in 20xx will be about (1 17).
Taiwan Province. As long as the answer to this question is? 1 17)
Ten, solve the problem (12? )
In the first semester of the 20xx school year, the students in Class E donated all the money from selling waste products to Project Hope. Details are as follows:
1, How much is the money for selling waste paper in Class E less than that for selling plastic bottles?
68.4-47.75=20.65 (Yuan)
A: The money for selling waste paper in Class E is 20.65 yuan less than that for selling plastic bottles.
2. How much more does Class E spend on selling waste paper and trash cans than on selling plastic bottles?
(47.75+25.2)-68.4=4.55 (Yuan)
A: The total amount of money for selling waste paper and trash cans in Class E is 4.55 yuan more than that for plastic bottles.
3. How much did Class One * * of Class Four E donate to Hope Project?
47.75+25.2+68.4 =141.35 (yuan)
A: Four E's.
People's education printing plate primary school mathematics fourth grade final examination paper
Fill in the blanks. (1 1 small question 3 points, the rest 1 point, ***20 points)
1, rewrite 499000000 as? Billion? The number of units is ().
2. 5 square meters and 8 square decimeters = () square meters 10. 1 ton = () kg.
10cm 5mm = () cm 2 yuan 5 points = () yuan.
3, when b and c are not equal to 0, a? b？ C=A？ ( )
4. Expand by 0.36 to 100 times, and move the decimal point to the left by one place.
5. Move the decimal point 0. 126 to the right by two digits (), and move the decimal point () to the left by three digits is 0.0068.
6. In a right triangle, one acute angle is 550 and the other acute angle is ().
7. Insert colored flags on one side of the deer (both ends), one side every 5 meters, and 20 sides. This path is () meters long.
8. Is it 180 according to the sum of the interior angles of the triangle? Find the sum of the internal angles of the following two figures.
Trapezoidal () degree, pentagonal () degree.
9. The number consisting of four ones, eight tenths and six thousandths is (), which is pronounced as ().
10, a two-digit decimal is 9.5, this two-digit decimal is (), and the minimum value is ().
The five numbers 1 1, 0.58, 5.8, 5.08, 0.508 and 0.558 are arranged in descending order, followed by ().
Second, the judgment question. (Right? , wrong number? ) (per grid 1 minute, * * *1minute)
1, multiply 0 by any number to get 0, and divide 0 by any number to get 0. ( )
2、35? (7? 3)=35? 7+35? 3。 ( )
3. A triangle with three sides of 4cm, 4cm and 8cm is an isosceles triangle. ( )
4. Add or delete zeros after the decimal point, and the size of the decimal point remains unchanged. ( )
5, 7.05, 7.0599, with one decimal place reserved, all of which are 7.l. ()
6. An isosceles triangle is an equilateral triangle. ( )
7. More than 2.4 and less than 2.6 have only one decimal place. ( )
8, 0.58 and 0.580 are equal in size, and the counting units are also equal. ( )
9.a is 40 to the southeast of B? In terms of direction, it can also be said that it is 50 degrees southeast. ( )
10. There are 6 white balls, 3 red balls and 3 black balls in the box. The chances of touching the red ball and the black ball are equal. ( )
Third, multiple choice questions. (2 points for each space, ***20 points)
1, and two triangles with acute angles of 60 degrees are ().
A, acute triangle b, obtuse triangle c, equilateral triangle
2. The number closest to 10 in the following figures is ().
a、9.98 B、 10. 10 1 C、 10.05
3、a？ One factor of b is multiplied by 10, and the other factor is also multiplied by 10, and the product is equal to ().
A, product multiplied by 100 B, product multiplied by 20 C, product multiplied by 10.
4, the following formula can be used to simply calculate the law of multiplication and distribution is ()
a 、( 125+90)？ 8 B、52？ 25? 4 C，7.6 X 1.25+2.4
5. Don't look at the numbers below? Zero? The number of is ()
a、807. 17 B、270.05 C、400.6 1
6. Which of the following figures? 0? Excluding the constant size is ()
A, B, C and 7: 50.
There is a () decimal between 7, 2.3 and 2.6.
A, 3 B, 30 C, countless
8. First move the decimal point of a decimal to the right, and then move it to the left by three places, the original number ().
A, expand 10 times b, shrink 10 times c, shrink 100 times.
9. It took three minutes to saw a piece of wood into three pieces. It will take () minutes if this piece of wood is sawed into five sections.
a、5 B、6 C、7.5
10, two identical isosceles right triangles, which can be spelled as ()
A, rectangle b, square c, parallelogram
Fourth, the calculation problem. (1 question 6, second question 12, *** 18)
1, oral calculation.
0.38+0.06= 64.2+5.7= 72? 9? 7=
0.97-0.09= 12.8-9.86= 17.05-4.58 =
3.5+0.6= 5-0. 15= 4.35+5.36=
0? 78= 2.05? 100= 0.093? 100=
2. Calculation can be simplified.
200-( 132+ 1080? 36) 4.7+9.69-5.46 99? 39+39
520-3000? 75? 6 72? 125 5000? 8? 125
Five, hands-on operation questions. (***7 points)
The average number of computers per 100 households in Friendship Community from 20xx ~20xx is shown below.
(1) The average number of computers per 100 households in Friendship Community has increased from 20xx~20xx ().
(2) From () to (), the average number of computers increased the least.
The average growth rate of computer ownership from () to ().
(3) According to the information in the picture, the average number of computers per 100 people in Friendship Community in 20xx is about ().
Sixth, solve the problem. (5 points for each question, ***25 points)
1. The school has purchased 3600 new books, which will be distributed to the first to sixth grades of the whole school. There are 4 classes in each grade. How many books are distributed in each class on average?
Xiaolan's mother took 50 yuan to buy food. Buy meat dishes 28.75 yuan, buy vegetarian dishes 6.35 yuan. How much is left?
3. The weight in winter and winter is 38kg. My cousin weighs half as much as him, while my grandfather weighs four times as much as my cousin. How many kilograms does grandpa weigh?
4. In the first week, the road team built a section of road for 6 days, with an average of 100 meters per day. The second week will be completed in four days, with an average of120m per day. How long is this road?
5. Has the zoo been launched? A day trip? Activity price of two schemes:
Option 1: 150 yuan/adult; Every child, 60 yuan,
Scheme 2: More than 5 people (including 5 people), each person 100 yuan.
Now there are four adults and six children to play. Think about how to buy tickets to save money.
Reference answer to the final examination paper of fourth grade mathematics
1. 1, 4.99 million 2,5.081010.52.053, b? C
4、3.6 5、 12.6 6.8 6、35? 7、95
8、360? 540? 9、4.806 10、9.49 9.45
1 1、5.8﹥5.08﹥0.58﹥0.558﹥0.508
Second,?
Third, C A A C C C B B
4.0.44 69.9 56 0.88 3.94 12.47 4. 1 4.85 9.7 1 00.0205 9.3
Verb (abbreviation of verb) 65 20xx-20xx 20xx-20xx 100
6. 1, 150, 14.9 yuan, 76kg,1080m.