The final examination paper of mathematics in the second volume of the fourth grade of primary school

1. Numbers written directly.

1.4? 100= 2.80? 10= 2.4? 100= 0.33? 10=

0.025? 100= 96? 6= 90? 100= 198? 36=

80? 16= 0.32- 1.98= 0.3+5.7= 24? 5=

Fill in the blanks: (8)

The counting unit of (1)2.05 is (), and it has () such counting units.

(2) The decimal point of 3.42 is (), which is () times the original number.

(3) 10 () is 0.0 1.

(4)30 1, and the number consisting of three thousandths is ()

(5) The number that 0.64 is rewritten into one thousandth is ()

(6) The maximum number of digits is () and the minimum number of decimal digits is ().

(7)5 is written as ()

(8) Of the three quantities of 2160kg, 2.016t and 20t106kg, the largest quantity is ().

The minimum quantity is ()

judge

(1) Add? 0? Or remove it? 0? The size of the decimal remains the same. ( )

(2) 48 1% in 4.8. ( )

(3) Move the decimal point 8.07 to the left by two places, and it will be expanded to 100 times. ( )

(4) Decimals are smaller than integers. ( )

(5)0.80 yuan and 0.8 yuan both mean 80 points. ( )

(6) Expand 7.6 by a factor of 100, and then reduce it by a factor of 10 to get 76.4. Choose the letter of the correct answer and put it in brackets.

1. The minute hand walks on the clock face for A.60 minutes. B. 12 hours. C. One day.

2. Divide two numbers, the quotient and divisor are both 23, and the minimum dividend is []

529 BC to 575 BC

3. 1.38-0.43-0.57-0.38 The simplest algorithm is [].

a . 1.38-(0.43+0.57+0.38)b .( 1.38-0.38)-(0.43+0.57)

4.25? 46? 40=46? (25? 40) This is the application of []

A. Multiplicative commutative law B. Multiplicative associative law C. Multiplicative distributive law D. Multiplicative commutative law and associative law

Fill in the appropriate numbers in the brackets. (4)

15km = () m 6.3m2 = () square decimeter.

9 square decimeter = () square meters. 80kg 80g = () kg。

7200 seconds = () 54 kg = () tons

40 kg = () ton = () gram 206 square decimeter = () square meter.

6. fill in ○? & gt？ 、? & lt？ Or? =? . (3)

6 decimeters, 8 centimeters, 68 centimeters, 400 grams, 4 kilograms, 8 square decimeters, 5 square centimeters, 8.5 square decimeters.

2 meters, 2 centimeters, 2.2 meters 1 day 12 hours, 5 square meters and 50 square decimeters.

7. Calculate the following questions as simply as possible (12)

1.49.8+39.7+ 1 1.2 2.5.02-3.99 -0.0 1 3. 13.7-4.5-5.5+6.3

4. 125? 56 5.302? 99+302 6. 145? 89+ 145? 2 1

Eight. Looking for unknown numbers. ( 12)

1 . x+46.8 = 1 12 2。 28? x=2 128 3.44.2-x=32.5 4.x？ 2 10=407

Nine. Calculate the following questions. ( 12)

1.9396? 58? (32+69) 2. 1600-(720+650? 13)

3.250? 400-40836? 12 4. 1624? (707- 14? 36)

X. formula calculation. (9)

What is the sum of the product of 1.36 times 15 plus the quotient of 80 divided by 5760?

The sum of two. 8.7 and 7.8 are numbers above 1.4. Find this number.

What is the product of 3.657 minus 225 divided by 18 and 8?

XI。 Application problems. (24)

1. The school bought 320 sets of desks and chairs, each with 55 yuan and each with 36 yuan. How much did the school spend? (Answer in two ways)

2. A rectangular vegetable field, length120m, width 60m. If a tomato is planted every 12 square decimeter, how many tomatoes can be planted in this vegetable field? If each tomato charges 3 kilograms, how many kilograms does a tomato charge?

3. There are 132 pear trees in the orchard, 44 fewer than peach trees, and the number of apple trees is equal to twice the total number of pear trees and peach trees. How many apple trees are there in the orchard?

The school assigned the task of cleaning a 39-meter-long and 20-meter-wide green space to two classes. There are 40 students in Class A and 38 students in Class B. How many square meters should each class clean if it is allocated according to the number of students?

5. Set up 7200m long cable, and plan to complete the task in 12 days, and it will be completed in 9 days. How many meters are actually set more than planned every day?

6. I hope to buy 60 footballs in primary school. There are three stores a, b and c to choose from. The football prices of the three stores are all within 25 yuan, but the preferential measures of each store are different.

Shop A: If you buy 10 soccer balls, you will get two for free. If you buy less than 10, you won't get them.

B shop: 5 yuan is a discount for every football.

Shop C: After shopping in 200 yuan, cash back to 30 yuan.

How much do these three stores buy football? In order to save money, which store is the best to buy a primary school?

First, fill in. (23%)

1. Triangle can be divided into () triangle, () triangle and () triangle.

2. change it to 306900? Wan? The unit is () million. For 387330000? Billion? The number of units is () billion.

3. The number consisting of 9 decimal places and 38 percentage points is (), which is the decimal place of ().

4.0.08 is 8 times the original number, and 42 is 0.042 times the original number.

5. An isosceles triangle with a base angle of 35? Its vertex angle is ().

6.7.096 Keep two decimal places about (), and the precision to the tenth place is about ().

7. Two decimal places are 9.5 after rounding. The maximum value of these two decimal places is (), and the minimum value is ().

8.9020kg = () tons 32.76km = () kilometers () meters.

1.82 yuan = () Yuan () Jiao () Minute 5 m 20 cm = () cm.

9. Fill in ○? & gt& lt？ Or? =? .

9/10.06 65438+50 million1500,000

3 km 56 m 3.56 km 7 kg 6800 g

Second, sentence. (Yes, in brackets? Wrong number in brackets? . )( 10%)

1. A triangle with two acute angles is called an acute triangle. ( )

2. The second number to the right of the decimal point is the percentile. ( )

3. 13 1-63+37= 13 1-(63+37)。 ( )

You can make a triangle with three sticks with the length of 4cm, 6cm and 9cm respectively. ( )

5.5 1 colorful flags (inserted at both ends) are inserted next to the straight runway, and their interval is 2 meters. This runway is102m long. ( )

Third, choose one. Fill in the correct serial number in brackets. )( 10%)

1. Which of the following numbers should I read? Zero? The number of is ().

a、20 1008 B、300.06 C、805.07 D、 190.07

2. Want to do 29□680? There are () filling methods in 300,000 □.

a、 1 B、4 C、6 D、5

3. Make an equilateral triangle with at least ().

a、 1 B、2 C、3 D、4

There are () decimal places between 4.0. 1 and 0.9.

A, 7 B, 8 C, 9 D, countless

5. In the following figures, the same size without 0 is ().

a、650 B、6.50 C、6.25 D、6.05

Fourth, do math. (25%)

1. Write directly.

42? 50= 0.6-0.47= 25? 8= (59+2 1) ? (72? 6)=

1-0.06= 0.8+4.7= 0.75? 100= 5.6? 100? 10=

2. Use a simple method to calculate.

4 15- 176-24 8.29+3.7+0.7 1+6.3

125? 89? 8 428 ? 78+572? Seventy-eight

3. Recursive equation calculation.

15? 27-3000? 25 2 16+64? 42? 28 (324-285) ? 12? 26

5. Draw a picture and mark it. (26%)

Mark the location of Xiaohong and Xiaogang's house on the floor plan below.

1. Xiaohong family 30? Directional, about 800 meters from the school.

2. School 45? Orientation is about 1000 meters away from the school.

Sixth, solve the problem. (25%)

1. On Children's Day, Mr. Wang bought costumes for children's performances and spent the same money on three T-shirts and five pairs of shorts. 39 yuan, how much is each pair of shorts and each T-shirt?

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. 8 bags of rice and 8 bags of flour in the school canteen, each bag contains 50 kilograms of rice and 25 kilograms of flour. How many kilograms of grain does a * * * transport?

Dongdong weighs 38kg, my cousin weighs half as much as him, and my grandfather weighs four times as much as my cousin. How many kilograms does grandpa weigh?

First, calculate carefully and skillfully, and don't miss a point. (12)

5? 24+76= 25+75? 3=

5? 8+2? 2= ( 16+4? 2)? 10=

47 - (2 1 - 15)? 5= 5? 9 - 24? 8=

1000? 125+560? 56= 150 - (25? 4+5)=

Second, the operating rules should be observed, and I will distinguish who comes first. (9 points)

1、( 148- 1 1 1? 37)? 5. Calculate method () first, then method (), and finally method ().

2、200? 5-( 147+465), you can calculate () method and () method at the same time, and then calculate ().

3、(39+ 105)? (35-27), after removing the two brackets, first calculate the method (), then calculate the method (), and finally calculate the method ().

Three, fill in the appropriate figures in □, and then list the comprehensive formula. (8 points)

1、

Comprehensive formula: comprehensive formula:

Fourth, use recursive equations to calculate the following problems. (18)

( 125+ 13? 24)? 5 (98- 12 1? 1 1)? 29

2 1? (230- 192? 4) (470+35? 3)? 23

2600? ( 1280- 15? 72) 3774? 37? (65+35)

5. Column calculation. (12)

What is the quotient of the sum of 1, 725 and 475 divided by 25?

2. What is the product of185 multiplied by the difference between 97 and 53?

What is the sum of the quotient of 3.870 divided by 5 and the product of 30 and 23?

What is the sum of 4784 plus 128 divided by 8 and multiplied by 23?

Fill in the form, make a histogram and answer questions. (17)

There are 44 students in Class One, 40 students in Class Two, 48 students in Class Three and 36 students in Class Four in Grade Four. Fill in the number of people in the statistical table below.

Total of Class One, Class Two, Class Three and Class Four

number of people

Make a bar chart according to the data and draw it on the grid on the right.

Answer the following questions:

1, there are () people in the fourth grade.

2, a grid represents () individuals.

3, according to the statistical chart, please put forward 2.

Questions and answers.

(1) Question:

Column type:

② Question:

Column type:

Seven, application solutions. (24 points)

1 and 15 cows eat concentrate for 7 days 1260 kg. How many Jin of concentrated feed does each cow eat on average every day?

Every four years, class one buys 252 exercise books, class two buys 270 exercise books, and everyone buys 6 exercise books. How many people are there in Class Two and Class One?

3. Six times by big ship and nine times by small ship. The ship carries 30 tons each time, and the boat carries 12 tons each time. How many tons did the big ship transport more than the small one?

There are 25 workers in a workshop, and each worker assembles 5 motors every day. How many motors can this workshop assemble in 23 days?

5, mentoring * * * cooperate to produce a batch of parts, 5 days to complete. Apprentice * * * out 125, master * * * out 230. How many more masters are produced than apprentices on average every day? (Answer in two ways)

6. The following table shows Xiaohua's final exam results:

Subject Chinese, mathematics, ideology and morality, natural sports music.

The scores are 92, 95, 96, 93, 82, 94.

What is the average score of Xiaohua?

I. Fill in the blanks: 23%

Eight times of 1 and 600 is (), and the sum of three 900 is ().

Four times that of () is 84.

15L+30ml = () ml

4500ml = () l+() ml 9 l = () ml。

2, fill in the name of the unit

The capacity of a thermos bottle is 2 () and the weight of a chalk head is about 1 ().

The capacity of a bottle of hand sanitizer is about 500 (), and a car fuel tank can hold 100 ().

3. The degrees of the three angles on a triangle are (), (), () or (), () respectively.

4. What is the vertex angle of an isosceles triangle 120? Its base angle is () degrees, which is a triangle ().

5. The circumference of an isosceles triangle is 20cm, the base is 8cm and the waist is () cm.

6. In an isosceles triangle, the top angle is three times the bottom angle, and the degrees of the three angles of this triangle are (), () and () respectively.

II. Judgment: 10%

1 and isosceles triangle are acute triangles ()

2、 15? The product of 200 has two zeros () at the end.

3. Given +0=80, the maximum product of +0 is 1600, and the minimum product is 80 ().

4. In any triangle, the maximum internal angle must be greater than 60? Da ()

5. Three sticks with the length of 10㎝, 4㎝ and 3㎝ cannot form a triangle ().

Three. Calculation: 29%

1, the number is written directly.

30? 50 60? 50 4500? 0 120? 30

40? 70 16? 40 200? 35 150? 40

2, with vertical calculation

450? 16 509? 54 240? 40

3. Calculate with a simple method

24? 125 16? 25 125? 32? 25

4. Non-type calculation

36? 25-840 130? (560-490) 3840? 5? 2

Iv. Operational problems: 13%

1, draw the height at the bottom of each triangle below, and mark the height in millimeters.

() mm () mm () mm

2. Draw a vertex angle of 80? An isosceles triangle with a waist length of 4 cm.

3. Draw triangles on the grid diagram below as needed. (Assume that the side length of each square is 1 cm)

Draw a triangle with a base height of 4 cm, and then draw a triangle with the same base height but different shapes.

Verb (short for verb) solves the problem: 25%

1, in the figure below? The degree of 2.

2. Cabbage 2 10 basket, 35 kg each, radish 150 basket, 48 kg each. How many catties are radish less than cabbage in the market?

There are 360 peach trees in the orchard, and an apple tree is less than three times as much as 140. How many peach and apple trees are there?

There is a clearing 45 meters long and 40 meters wide in the park. How many plants can * * * plant if four plants are planted in each square meter of open space?

The fourth grade students go for a spring outing. Park tickets 14 yuan per student * * * 102 students. Is it enough for teacher Zhang to buy a house number with 1500?

Write directly first (0.5 for each question, *** 10)

32.8+ 19= 0.5 1? 17= 240? 30= 1000? 0.8=

3.06+0.2= 0.67+ 1.24= 8? 125= 7-6.28=

8.2-0.0 1= 99? 23= 50? 4= 5? 1000=

0.42+9.5= 65? 25? 4= 0.08? 100= 10? 0.5=

1.82-0.63= 4.5+ 1.5= 1-0.63= 23 1-99=

Two. Fill in the blanks (each blank 1, *** 15)

1. A number, one billion digits 6, one million digits 4, one hundred thousand digits 5, one thousand digits 8, and the rest are zeros. This number is written as () and read as (), and the counting unit of the highest digit is ().

232.368 billion 7 million, writing (), rewritten as using? Billion? The number of units is about ().

3.25m 60mm = () mm

4.3.45 square meters = () square meters () square decimeter

5. 150 points = () points.

6. 15 ton 60 kg = () kg

7. Both natural numbers and 0 are () numbers.

The smallest number is ().

Third, the judgment (correct in brackets? Is there a mistake in the brackets? ) (each question 1 point, *** 10 point)

1. The meaning of decimal addition is exactly the same as that of integer addition. ()

2. Two disjoint lines are called parallel lines. ()

3. In division with remainder, the divisor must be greater than the remainder. ()

4.0.47 magnification 10 times equals 470 reduction 100 times. ()

5. The angle is related to the length of the side. ()

6. Decimal must be less than integer. ()

7. The largest four digits are more than the smallest five digits 1. ()

8. A triangle with two acute angles is called an acute triangle. ()

9.57? The simple algorithm of 10 1 is 57? 100+57=5757.( )

10.a？ The product of b must be greater than a. ()

Four, the calculation problem (***33 points)

1. Calculate the following questions and check them. (2 points for each question, * * * 4 points)

①802? 1 1 ②329? 48

3. Calculate the following questions and use a simple algorithm (3 points for each question, ***2 1 minute).

①387 1-( 1080-740)? 7 ②5 175? 207+ 102? 9 ③0.9+ 1.08+0.92+0. 1

④ 13.59-6.9 1-0.09 ⑤983? (3.8+2.2)+0.237? 1000 ⑥0.8? (35+65)? 5? 100

⑦30-[ 17.8+(6.2+38? 10)]

V column calculation (3 points for each question, *** 12 points)

1. 10 minus the sum of 5.6 and 1.4, and the difference is divided by 246. What is the quotient?

2.6.2 What is the product of the sum of 2.4 and 1.3 minus the difference multiplied by 100?

3.2 1 times the product of 32 and 88, and the product is subtracted from 9 136. What is the difference?

What is the sum of the quotient of 4.357 divided by 7 and the product of 1000 and 0.875?

Six, application questions (5 points per question, ***20 points)

1. A grade three or four primary school needs to water 620 trees. In the third grade, 40 trees should be watered every day for 8 days. The rest will be watered in the fourth grade. How many trees will be watered every day after five days?

2.3 The loom weaves 336m in 4 hours. According to this calculation, how many meters does 1 loom weave in 8 hours?

The distance between Party A and Party B is 560 kilometers. One car travels from Party A to Party B at a speed of 48 kilometers per hour, and the other car travels from Party B to Party A at a speed of 32 kilometers per hour. How many kilometers apart are the two cars five hours after they leave the two places?

A section of highway was originally planned to be completed in 20 days. Actually, 45 meters are built every day more than originally planned, and the task is completed five days ahead of schedule. How many meters was originally planned to be built every day?