2. Distribute 3kg of fruit to 4 children on average, each child gets () of this 3kg of fruit, and each child gets () kg.
Master Wang made five parts in eight minutes, he can make () parts per minute, and it takes () minutes to make a part.
Cut off the 4.5-meter-long rope 15 meters, leaving () meters.
Cut off its 15 from the 5-meter-long rope, leaving () meters.
Add 9 to the numerator of 5. 68, and the denominator plus () will not change.
6. The smallest three digits that can be divisible by 2 and 3 at the same time is ()
The smallest three-digit number that can be divisible by 3 and 5 at the same time is ()
The smallest three digits that can be divisible by 2, 3 and 5 at the same time is ()
The largest double digit that can be divisible by 2 and 3 at the same time is ()
The largest double digit that can be divisible by 3 and 5 at the same time is ()
The largest double digit that can be divisible by 2, 3 and 5 at the same time is ()
The largest prime number within 100 is ()
The largest prime number within 50 is ()
The sum of all prime numbers within 7.20 is ()
The sum of all complex numbers within 20 is ()
The sum of all odd numbers within 20 is ()
The sum of all even numbers within 20 is ()
8. A three-digit number, where one digit is the smallest composite number, ten digits are the smallest prime number, and hundreds digits are the smallest odd number. This three-digit number is ().
9. A basket of apples, two for each, three for each, four for each, and five for each, will leave one. There are at least () apples in this basket.
10. A number is both a multiple of 6 and a factor of 48. This number may be ().
11.20 is both an odd number and a composite number ().
12. The sum of all the simplest true fractions whose denominator is 8 is ()
The sum of all true fractions whose denominator is 8 is ()
13. The sum of the edges of a cube is 60cm, and its surface area is () and its volume is ().
14. The largest four-digit number that can be divided by 2, 3 and 5 at the same time is ().
15. Cut a large colored cube into eight small cubes, and there are () blocks painted on three sides.
Cut a large colored cube into 27 small cubes, and there are () blocks painted on three sides.
There are () blocks painted on two sides, 1 blocks painted on one side and () blocks painted on the other side.
16.A=2×2×3×5×7 B=2×3×7
The greatest common factor of a and b is ()
The least common multiple of a and b is ()
17. The numerator of a fraction is enlarged by 3 times, the denominator is reduced by 2 times, and the fractional value ().
The numerator of a fraction is reduced by 3 times, the denominator is enlarged by 2 times, and the fractional value ()
The numerator of a fraction is enlarged by 3 times, the denominator is enlarged by 3 times, and the fractional value ()
18. When the edge length of a cube is enlarged by a time, its total edge length is enlarged by () times, its surface area is enlarged by () times and its volume is enlarged by () times.
When the edge length of a cube is enlarged by 3 times, its sum of edge length is enlarged by () times, its surface area is enlarged by () times and its volume is enlarged by () times.
19. There are () simplest true fractions whose denominator is 9, and their sum is ().
There are () true fractions whose denominator is 9, and their sum is ().
There are () false scores with numerator 9.
There are () factors of 20.36
2 1. There are 44 students in the class, and there are 24 girls. Girls account for () of the class, and boys account for () of the class. If boys and girls are divided into equal groups, they can be divided into () groups, with a maximum of () in each group.
22.58m is () m 18, and it can also be () m () ().
23. The volume of a Rubik's cube is about 30 (). The volume of a car fuel tank is about 30 ().
The volume of an eraser is about 8 (), and the length of one step is about 6 ().
24.152 decomposition prime factor is ()
25. The natural number A is 1 1 times of B, and the greatest common factor of A and B is ().
The least common multiple of a and b is ()
The natural number A is 18 of B, and the greatest common factor of A and B is ().
The least common multiple of a and b is ()
The natural number A is the factor of B, and the greatest common factor of A and B is ().
The least common multiple of a and b is ()
26.9÷( )= ( ) 10 =0.6=72( ) =9×5 15+( )
27. A wire is 6 meters long. If you use 25 of it, there is still (). If you use 25 meters, there is still ().
28. A rectangular body is 4 decimeters long, 3 decimeters wide and 2 decimeters high. If you cut it into two small cuboids, its surface area will increase by () square decimeters at most, and its volume will increase by () cubic decimeters.
29. A batch of parts, 10 qualified, 1 unqualified, unqualified accounted for () of the total.
Unit conversion: 100 minutes = () hours 45 minutes = () hours.
225 square centimeters = () square meters (fill in scores)
18 hours = () days (fill in the score)
45ml=( )L (fill in score)
68 points = () (fill in the score)
32 hours = () days (fill in scores)
1.032m3 = () cubic decimeter = () cubic centimeter
1.032 cubic meter = () cubic meter () cubic decimeter.
2.05 liters = () cubic decimeter = () milliliter
2.05 liters = () cubic decimeter () milliliter
Second, the judgment question
Simplest fraction is a fraction whose numerator and denominator are prime numbers ..................... ()
The sum of all true fractions whose denominator is 8 is 2 .............................. ()
The sum of all the simplest true fractions whose denominator is 8 is 2 ................................. ()
The product of two different natural numbers must be a composite number .................... ()
The sum of two different prime numbers must be a composite number .................... ()
A fraction whose numerator and denominator are prime numbers is called simplest fraction ().
The fraction whose numerator and denominator are prime numbers must be simplest fraction ().
Parallelogram is an axisymmetric figure.
Third, the calculation problem
378 - 14 + 34 + 18 5- 16 + 56 - 1
Fourth, answer questions
1.Put 5g of salt in100g of water.
What percentage of salt accounts for salt water? What percentage of salt water is water?
How much is salt in water? How many times is water than salt?
2. Use a small rectangular block with a length of 24cm and a width of 16cm to make a big square block. What is the minimum length of the side of the big square? At least this small rectangular block of wood. How many pieces?
3. Use square floor tiles to pave a room with a length of 24m and a width of 27m. The floor tiles to be used are all in one piece. What is the maximum length of floor tiles that can be used? How many tiles do you want to use?
4. A cube pen container, the total length of edges is 36 cm, and its surface area is () square cm.
5. How many square decimeter iron sheets does it take to make an uncovered cuboid iron suitcase with a length of 40cm, a width of 30cm and a height of 20cm? If the weight of gasoline per liter is 0.82 kg, how many kilograms of gasoline can this tin box hold?
6. Master Wang makes 5 parts in 4 hours, Li Shifu 9 hours 1 1 part, Master Wang makes () parts per hour, and Li Shifu takes () hours to make a part, and () does it quickly.
7. A is 35, which is more than B 14. What is the sum of A and B?
8. A is 35, and B is more than A 14. What is the sum of A and B?
9. The bridge pile is driven into the river bottom for 235 meters, with the water depth of 12 14 meters and the water surface of 25 12 meters. How long is the bridge pile 6x-0.4× 6 = 9.6?
1 18-2×( 4. 1 + X ) = 55
4x +80 = 160
9.6÷X = 0.8
4.8-X = 3×( X + 6 )
4.3X- 1.5 + 3.2X = 4.5
2.7X- 1.6 = 38.9
X÷4.5 = 20
(0.5+x)+x=9.8÷2
2(X+X+0.5)=9.8
25000+x=6x
3200=450+5X+X
X-0.8X=6
12x-8x=4.8
7.5*2X= 15
1.2x=8 1.6
x+5.6=9.4
52-x = 15
9 1÷x = 1.3
X+8.3= 10.7
15x =3
3x-8= 16
7(x-2)=2x+3
3x+9=27 18(x-2)=270
12x=300-4x
7x+5.3=7.4
3x÷5=4.8
30÷x+25=85
1.4×8-2x=6
6x- 12.8×3=0.06
4 10-3x= 170
3(x+0.5)=2 1
0.5x+8=43
6x-3x= 18
1.5x+ 18=3x
5×3-x÷2=8
0.273÷x=0.35
1.8x=0.972
x÷0.756=90
9x-40=5
x÷5+9=2 1
48-27+5x=3 1
10.5+x+2 1=56
x+2x+ 18=78
(200-x)÷5=30
(x- 140)÷70=4
0. 1(x+6)=3.3×0.4
4(x-5.6)= 1.6
7(6.5+x)=87.5
(27.5-3.5)÷x=4
x+ 19.8=25.8
5.6x=33.6
9.8-x=3.8
75.6÷x= 12.6
5x+ 12.5=32.3
5(x+8)= 102
x+3x+ 10=70
3(x+3)=50-x+3
5x+ 15=60
3.5-5x=2
0.3×7+4x= 12.5
x÷ 1.5- 1.25=0.75
4x- 1.3×6=2.6
20-9x= 1.2×6.25
6x+ 12.8= 15.8
150×2+3x=690
2x-20=4
3x+6= 18
2(2.8+x)= 10.4
(x-3)÷2=7.5
13.2x+9x=33.3
3x=x+ 100
x+4.8=7.2
6x+ 18=48
3(x+2. 1)= 10.5
12x-9x=8.7
13(x+5)= 169
2x-97=34.2
3.4x-48=26.8
42x+25x= 134
1.5(x+ 1.6)=3.6
2(x-3)=5.8
65x+7=42
9x+4×2.5=9 1
4.2 x+2.5x= 134
10.5x+6.5x=5 1
89x-43x=9.2
5x-45= 100
1.2x-0.5x=6.3
23.4=2x=56
4x-x=48.6
4.5x-x=28
X-5.7=2. 15
15 5X-2X= 18
3X+0.7=5
3.5×2= 4.2+x
26× 1.5= 2x+ 10
0.5× 16― 16×0.2=4x
13 9.25-X=0.403
16.9÷X=0. 3
X÷0.5=2.6
x+ 13=33
3 - 5x=80
1.8 +6x=54
6.7x -60.3=6.7
9 +4x =40
2x+8= 16
x/5= 10
x+7x=8
9x-3x=6
6x-8=4
5x+x=9
x-8=6x
4/5x=20
2x-6= 12
7x+7= 14
6x-6=0
5x+6= 1 1
2x-8= 10
1/2x-8=4
x-5/6=7
3x+7=28
3x-7=26
9x-x= 16
24x+x=50
6/7x-8=4
3x-8=30
6x+6= 12
3x-3= 1
5x-3x=4
2x+ 16= 19
5x+8= 19
14-6x=8
15+6x=27
5-8x=4
7x+8= 15
9-2x= 1
4+5x=9
10-x=8
8x+9= 17
9+6x= 14
x+9x=4+7
2x+9= 17
8-4x=6
6x-7= 12
7x-9=8
x-56= 1
8-7x= 1
x-30= 12
6x-2 1=2 1
6x-3=6
9x= 18
4x- 18= 13
5x+9= 1 1
6-2x= 1 1
x+4+8=23
7x- 12=8
X-5.7=2. 15
15 5X-2X= 18
3X 0.7=5
3.5×2= 4.2 x
26× 1.5= 2x
0.5× 16― 16×0.2=4x
9.25-X=0.403
16.9÷X=0.3
X÷0.5=2.6
3-5x=80
1.8-6x=54
6.7x-60.3=6.7
9 +4x=40
0.2x-0.4+0.5=3.7
9.4x-0.4x= 16.2
12-4x=20
1/3x+5/6x= 1.4
12x+34x= 1
18x- 14x= 12
23 x-5× 14= 14
12+34x=56
22- 14x= 12
23x- 14x= 14
x+ 14x=65
23x= 14x+ 14
30x 12x- 14x= 1
x-0.7x=3.6
1, laying an underground cable on Zhongyuan Road, 34 meters have been laid, leaving 250 meters unpaved. How many meters is this cable?
2. Repair a section of the road. On the first day, the full length of 1/4 was repaired, and on the second day, it was 90 meters. At this time, 150 meters was left. How many meters is this section of road?
3. There was a pile of yellow sand on the construction site, which used 23% and just used 60 tons. How many tons was this pile of yellow sand?
4. Sound travels about 1 km in air for 3 seconds, and the speed of light is about 300,000 km per second. What is the speed of sound?
5. A wheat experimental field, originally planned to produce 8 tons of wheat per hectare, actually produced a few tons of wheat per hectare?
6. The staff canteen planned to burn 5 tons of coal in April, but actually burned 4.8 tons. What percentage was saved?
7. 4250 kilograms of flour can be ground with 5000 kilograms of wheat, and the flour yield of wheat can be obtained.
8. The flour yield of wheat is 80%. How many kilograms of wheat do you need to grind 640 kilograms of flour?
9. There are 50 students in Class 6 (1), and two of them take time off one day, so what's the attendance rate for that day?
10, several trees were planted on Arbor Day, and 485 trees survived, but none survived 15. Please find the survival rate of this tree planting.
1 1, Miss Wang went to the sporting goods store and bought five small soccer balls. She paid 100 yuan and got back 32.5 yuan. How much is each small soccer ball?
12. Two cars of Party A and Party B leave from two places which are 255km apart at the same time. Car A travels 52km per hour, while car B travels 57km per hour. After several hours, the distance between the two cars is still 37km?
13, the master and the apprentice * * * processed 208 machine parts, and the number of parts processed by the master was 4 times more than that of the apprentice. How many parts did the master and the apprentice each process?
14. The deposit amount of Wang Fang is 2.2 times that of Li Li. If Li Li deposits in the bank 75 yuan again, the deposits of the two people will be equal. How much did they each deposit?
15, in the fifth grade, buy a batch of notebook awards for three-good students. If each student is awarded five books, there are three left; If each person is awarded 6 copies, there will be less 12 copies. How many "three good" students were selected in the fifth grade? How many notebooks did you buy?
16. There are 80 sheep on the hillside, among which the number of white sheep is four times that of black sheep. How many black sheep and white sheep are there on the hillside?
17. Two baskets of oranges were sold in the store. The first basket weighed 26 kilograms, and the second basket weighed 29 kilograms. The second basket sold more money from 9 yuan than the first basket. How much was the average per kilogram of oranges? (Solve in two ways)
18, a trapezoidal wheat field, with an area of 540m2, a height of18m, an upper bottom of 20m and a lower bottom of 20m?
19. Two cars, A and B, leave from two places 750 kilometers apart at the same time, facing each other and meet in 5 hours. Car A travels 80 kilometers per hour, and car B travels how many kilometers per hour?
20. Two cars leave from the same place at the same time. After driving for 4.5 hours, car A falls behind car B 13.5 kilometers. It is known that car A travels 35 kilometers per hour. How many kilometers does car B travel per hour?
2 1, the students went for a spring outing, and there were already 45 people in the car; There are still four groups waiting for the next bus, with 9 people in each group. How many people went for a spring outing?
22. One * * * has 150 people going for a spring outing, and 54 people have already left. The rest will go by two cars. How many people will each car take on average?
23. There are 18 boys in the dance team, and the number of girls is twice that of boys. How many boys and girls are there in the dance team?
24. The students made flowers, Xiaojun made 63, Xiaohong made fewer flowers than Xiaojun 18, and how many flowers did they make together?
25. I bought 25 kilograms of cabbage for the first time and 0/75 kilograms of cabbage/kloc-for the second time in the canteen. Based on the calculation of 6 cents per kilogram of cabbage, how much does it cost to buy cabbage in the canteen?
26. Xiaohua showed Xiaogang a book. Xiaohua read 132 pages in 4 days, and Xiaogang read 96 pages in 3 days. Who reads fast? Why?
27. Mom bought three T-shirts for Xiao Ming, and each T-shirt was 23 yuan. She paid the salesperson 100 yuan. How much should she get back?
28. Sporting goods stores used to have 72 basketballs, but they sold 60 and bought 45. How many basketballs are there now?
29. The students went to visit the Observatory. There were 9 girls, and the number of boys was three times that of girls. Is a 40-seat car enough?
30. There are 24 boxes of chess in the school activity room. The number of boxes of military flags is twice that of chess, and there are 12 boxes of checkers. How many boxes are fewer than military flags?
3 1. The school bought 80 boxes of white chalk and 20 boxes of red chalk, and used 60 boxes. How many boxes are left?
32. The teacher has 8 bags of table tennis, 6 in each bag, and lent them to classmates 15. How many are left?
33. The teacher took 70 yuan to buy books and bought seven sets of story books, each set of 9 yuan. How much is left?
34. The garment group has 90 meters of cloth, 63 meters was used, and the rest of the cloth was made into 9 sets of clothes. How many meters of cloth was used for each set of clothes on average?
35. There are 80 packets of instant noodles in the grocery store. I sold 26 packets in the morning and 34 packets in the afternoon. How many packets are left? (Answer in two ways)
36. A chemical fertilizer plant produces 3 10 tons of chemical fertilizer in January, 400 tons in February and 490 tons in March. How many tons of chemical fertilizer are produced on average every month?
37. A horse eats 12 kilograms of grass every day. According to this calculation, how many kilograms of grass can 25 horses eat a week? (calculated in two ways)
38. Worker Master Wang and his apprentice make machine parts. Master Wang makes 45 per hour, while his apprentice makes 28 per hour. Master Wang works for 6 hours and his apprentice works for 8 hours. How many machine parts do they make?
39. The factory has 8000 kilograms of coal, which was originally planned to burn for 25 days. Due to the improvement of the stove, it actually burned for 32 days. How many kilograms is saved on average every day compared with the original plan?
40. The construction site needs 1280 bags of cement, and it takes eight carts to transport them all four times. How many bags of fertilizer can one cart transport at a time? (calculated in two ways)
4 1, Farm Tools Factory produced 4650 farm tools in the first half of the year, and 5382 farm tools in the second half of the year. How many farm tools are produced every month on average throughout the year?
42. Clothing processing department can make 24 sets of adult uniforms with120m cloth, and 30 sets of children's clothes. How many meters does each set of children's clothes use less cloth than that of adults?
43. A chicken farm sold12,300 chickens in April, but it sold 200 fewer chickens in May than in April. How many chickens were sold in two months?
44. One flour mill grinds 800 kilograms per hour. According to this calculation, how many kilograms of flour can six flour mills grind in five hours? (Answer in two ways)
45, a pile of coal ***800 tons, with five trucks, 16 times can be shipped out, on average, how many tons per truck at a time?
46. A car traveled 300 kilometers in six hours and a train traveled 600 kilometers in six hours. How many kilometers does the train travel more than the car per hour?
47. During a week, the meteorological team of Xiangyang Primary School measured the highest daily temperatures as 3 1, 3 1, 34, 32, 33, 30 and 33 degrees respectively. What is the highest average temperature this week?
48. A factory originally planned to produce 4,800 farm tools a year, but actually completed the task in 10 month. How many more farm tools are actually produced per month than originally planned?
49. One machine can process 320 parts in 8 hours. According to this calculation, how many hours will it take to process 2000 parts with five machines?
50. A coal mine planned to produce 38,400 tons of coal in April. After technological innovation, the average daily output increased by 256 tons compared with the original plan. How many tons of coal did it actually produce in April? (Calculated by 30 days)
Hello, landlord!
The following are my answers, all of which are my hard-earned topics: 1. Laying an underground cable on Zhongyuan Road, 34 meters have been laid, and 250 meters are left unpaved. How many meters is this cable?
2. Repair a section of the road. On the first day, the full length of 1/4 was repaired, and on the second day, it was 90 meters. At this time, 150 meters was left. How many meters is this section of road?
3. There was a pile of yellow sand on the construction site, which used 23% and just used 60 tons. How many tons was this pile of yellow sand?
4. Sound travels about 1 km in air for 3 seconds, and the speed of light is about 300,000 km per second. What is the speed of sound?
5. A wheat experimental field, originally planned to produce 8 tons of wheat per hectare, actually produced a few tons of wheat per hectare?
6. The staff canteen planned to burn 5 tons of coal in April, but actually burned 4.8 tons. What percentage was saved?
7. 4250 kilograms of flour can be ground with 5000 kilograms of wheat, and the flour yield of wheat can be obtained.
8. The flour yield of wheat is 80%. How many kilograms of wheat do you need to grind 640 kilograms of flour?
9. There are 50 students in Class 6 (1), and two of them take time off one day, so what's the attendance rate for that day?
10, several trees were planted on Arbor Day, and 485 trees survived, but none survived 15. Please find the survival rate of this tree planting.
1 1, Miss Wang went to the sporting goods store and bought five small soccer balls. She paid 100 yuan and got back 32.5 yuan. How much is each small soccer ball?
12. Two cars of Party A and Party B leave from two places which are 255km apart at the same time. Car A travels 52km per hour, while car B travels 57km per hour. After several hours, the distance between the two cars is still 37km?
13, the master and the apprentice * * * processed 208 machine parts, and the number of parts processed by the master was 4 times more than that of the apprentice. How many parts did the master and the apprentice each process?
14. The deposit amount of Wang Fang is 2.2 times that of Li Li. If Li Li deposits in the bank 75 yuan again, the deposits of the two people will be equal. How much did they each deposit?
15, in the fifth grade, buy a batch of notebook awards for three-good students. If each student is awarded five books, there are three left; If each person is awarded 6 copies, there will be less 12 copies. How many "three good" students were selected in the fifth grade? How many notebooks did you buy?
16. There are 80 sheep on the hillside, among which the number of white sheep is four times that of black sheep. How many black sheep and white sheep are there on the hillside?
17. Two baskets of oranges were sold in the store. The first basket weighed 26 kilograms, and the second basket weighed 29 kilograms. The second basket sold more money from 9 yuan than the first basket. How much was the average per kilogram of oranges? (Solve in two ways)
18, a trapezoidal wheat field, with an area of 540m2, a height of18m, an upper bottom of 20m and a lower bottom of 20m?
19. Two cars, A and B, leave from two places 750 kilometers apart at the same time, facing each other and meet in 5 hours. Car A travels 80 kilometers per hour, and car B travels how many kilometers per hour?
20. Two cars leave from the same place at the same time. After driving for 4.5 hours, car A falls behind car B 13.5 kilometers. It is known that car A travels 35 kilometers per hour. How many kilometers does car B travel per hour?
2 1, the students went for a spring outing, and there were already 45 people in the car; There are still four groups waiting for the next bus, with 9 people in each group. How many people went for a spring outing?
22. One * * * has 150 people going for a spring outing, and 54 people have already left. The rest will go by two cars. How many people will each car take on average?
23. There are 18 boys in the dance team, and the number of girls is twice that of boys. How many boys and girls are there in the dance team?
24. The students made flowers, Xiaojun made 63, Xiaohong made fewer flowers than Xiaojun 18, and how many flowers did they make together?
25. I bought 25 kilograms of cabbage for the first time and 0/75 kilograms of cabbage/kloc-for the second time in the canteen. Based on the calculation of 6 cents per kilogram of cabbage, how much does it cost to buy cabbage in the canteen?
26. Xiaohua showed Xiaogang a book. Xiaohua read 132 pages in 4 days, and Xiaogang read 96 pages in 3 days. Who reads fast? Why?
27. Mom bought three T-shirts for Xiao Ming, and each T-shirt was 23 yuan. She paid the salesperson 100 yuan. How much should she get back?
28. Sporting goods stores used to have 72 basketballs, but they sold 60 and bought 45. How many basketballs are there now?
29. The students went to visit the Observatory. There were 9 girls, and the number of boys was three times that of girls. Is a 40-seat car enough?
30. There are 24 boxes of chess in the school activity room. The number of boxes of military flags is twice that of chess, and there are 12 boxes of checkers. How many boxes are fewer than military flags?
3 1. The school bought 80 boxes of white chalk and 20 boxes of red chalk, and used 60 boxes. How many boxes are left?
32. The teacher has 8 bags of table tennis, 6 in each bag, and lent them to classmates 15. How many are left?
33. The teacher took 70 yuan to buy books and bought seven sets of story books, each set of 9 yuan. How much is left?
34. The garment group has 90 meters of cloth, 63 meters was used, and the rest of the cloth was made into 9 sets of clothes. How many meters of cloth was used for each set of clothes on average?
35. There are 80 packets of instant noodles in the grocery store. I sold 26 packets in the morning and 34 packets in the afternoon. How many packets are left? (Answer in two ways)
36. A chemical fertilizer plant produces 3 10 tons of chemical fertilizer in January, 400 tons in February and 490 tons in March. How many tons of chemical fertilizer are produced on average every month?
37. A horse eats 12 kilograms of grass every day. According to this calculation, how many kilograms of grass can 25 horses eat a week? (calculated in two ways)
38. Worker Master Wang and his apprentice make machine parts. Master Wang makes 45 per hour, while his apprentice makes 28 per hour. Master Wang works for 6 hours and his apprentice works for 8 hours. How many machine parts do they make?
39. The factory has 8000 kilograms of coal, which was originally planned to burn for 25 days. Due to the improvement of the stove, it actually burned for 32 days. How many kilograms is saved on average every day compared with the original plan?
40. The construction site needs 1280 bags of cement, and it takes eight carts to transport them all four times. How many bags of fertilizer can one cart transport at a time? (calculated in two ways)
4 1, Farm Tools Factory produced 4650 farm tools in the first half of the year, and 5382 farm tools in the second half of the year. How many farm tools are produced every month on average throughout the year?
42. Clothing processing department can make 24 sets of adult uniforms with120m cloth, and 30 sets of children's clothes. How many meters does each set of children's clothes use less cloth than that of adults?
43. A chicken farm sold12,300 chickens in April, but it sold 200 fewer chickens in May than in April. How many chickens were sold in two months?
44. One flour mill grinds 800 kilograms per hour. According to this calculation, how many kilograms of flour can six flour mills grind in five hours? (Answer in two ways)
45, a pile of coal ***800 tons, with five trucks, 16 times can be shipped out, on average, how many tons per truck at a time?
46. A car traveled 300 kilometers in six hours and a train traveled 600 kilometers in six hours. How many kilometers does the train travel more than the car per hour?
47. During a week, the meteorological team of Xiangyang Primary School measured the highest daily temperatures as 3 1, 3 1, 34, 32, 33, 30 and 33 degrees respectively. What is the highest average temperature this week?
48. A factory originally planned to produce 4,800 farm tools a year, but actually completed the task in 10 month. How many more farm tools are actually produced per month than originally planned?
49. One machine can process 320 parts in 8 hours. According to this calculation, how many hours will it take to process 2000 parts with five machines?
50. A coal mine planned to produce 38,400 tons of coal in April. After technological innovation, the average daily output increased by 256 tons compared with the original plan. How many tons of coal did it actually produce in April? (Calculated by 30 days)