1, (180-6×15) ÷ 7.5 =12 (days)
2. The construction site needs sand 106 tons, and car transportation 15 times, with 2.4 tons each time. The rest are transported by cart, 5 tons each time. How many times will it take to complete?
2. (106-2.4×15) ÷ 5 =14 (times)
Zhang Li bought four fables and four English humors, gave them 20 yuan and took them back to 7.6 yuan. Every fable 1.6 yuan. How much is each English humor?
3. (20-7.6) ÷ 4-1.6 =1.5 (yuan)
There used to be 30 boats in People's Park, which could bring 540 yuan's income every day. Now there are more 15 boats than before. What's your daily income now?
4, 540 ÷ 30× (30+15) = 810 (yuan)
5. The TV factory originally planned to produce 1680 color TV sets in 36 days, but half of them were completed in the first 16 days. The rest of the plan will be completed within 6 days. How many units are produced on average every day?
5, 1680 ÷ 2 ÷ 6 = 140 (Taiwan Province)
1. A factory has a batch of coal. It was originally planned to burn 5 tons a day, which can last for 45 days. In fact, it burns 0.5 tons less every day. How many days can this batch of coal burn?
1, 5× 45 ÷ (5-0.5) = 50 (days)
2. The school bought150m long plastic rope, cut off 7.5m first, and made three skipping ropes with the same length. According to this calculation, how many plastic ropes are left?
2.( 150-7.5) ÷ (7.5 ÷ 3) = 57 (root)
3. To build the canal, it was originally planned to build 0.48km every day and complete it in 30 days. Actually, it's repairing 0.02 kilometers every day. How many days was it actually repaired?
3.0.48× 30 ÷ (0.48+0.02) = 28.8 (days)
4. Miss Wang reads a book. If he reads 32 pages every day, 15 days will be enough. Now I read 40 pages a day. I can finish reading them a few days in advance.
4. 15-32× 15 ÷ 40 = 3 (days)
A car traveled 260 kilometers in four hours. At this speed, it traveled for another 2.4 hours. How many kilometers have you traveled before and after? (Answer in two ways)
5, 260 ÷ 4× 2.4+260 = 4 16 (km) 260 ÷ 4× (4+2.4) = 4 16 (km)
6. Shihe Farm first dispatched 8 harvesters to harvest late rice, and harvested 19.2 hectares two days ago, and then increased to 13 harvesters. At the same speed, they cut for another four days. How many hectares of land have they cut down?
6.19.2 ÷ 2 ÷ 8× 4×13+19.2 = 81.6 (hectare)
7. The distance between Party A and Party B is 600 kilometers. A bus and a truck run from Party A to Party B at the same time. The bus arrived four hours earlier than the truck. When the bus arrived at Party B, the truck traveled 400 kilometers. How long does the bus take to complete the journey?
7,600 ÷ [(600-400) ÷ 4]-4 = 8 (hours) or 4 ÷ (600 ÷ 400- 1) = 8 (hours).
The distance between Party A and Party B is 500 kilometers. Party A travels 30 kilometers per hour and Party B travels 20 kilometers per hour. How many hours did you meet when you left at the same time?
500÷(30+20)= 10
1. This store has 2 10 color TV sets, which is 3 times more than black and white TV sets. How many black and white TV sets are there in this shop?
1.63 sets
2. Use a wire with the length of 12.4 decimeter to form an isosceles trapezoid. It is known that the two waists of this trapezoid are 6.4 decimeters long and the area is 9 square decimeters. What is the height of this trapezoid? (Equation solving)
2.3 meters
There are several geese and ducks in the river, among which the number of ducks is four times that of geese. It is also known that there are 27 geese in Abby Mallard. How many are there in each goose and duck?
There are 9 geese and 36 ducks.
4. A forest farm should plant 2000 trees, with an average of 350 trees per day in the first three days. The rest are required to be planted in two days. How many trees should be planted on average every day?
4.475 trees
The bottom of the triangular flower bed is 14 meter and the height is 70 decimeters. How many square meters is this flower bed?
2. Two identical trapezoids, with the upper bottom length of 15cm, the lower bottom length of 24cm and the height of 12cm. If these two trapezoids are put together to form a parallelogram, what is the area of this parallelogram?
The triangle has an area of 390 square centimeters and a height of 26 centimeters. How many centimeters is its bottom?
4. parallelogram vegetable fields with a bottom of 30 meters and a height of 25 meters. If you harvest 15 kg of vegetables per square meter, how many kg of vegetables can this vegetable field harvest at a time?
5. A trapezoidal orchard with an upper bottom of 58 meters, a lower bottom of 44 meters and a height of 20 meters, if an apple tree is planted every 4 square meters. How many apple trees can be planted in this land?
An express train and a local train met on the way. The express train is 400 meters long and travels 1 100 meters per minute. The local train is 600 meters long and travels 900 meters per minute. How many points does it take for the two trains to meet and leave completely?
A 2-meter-long ventilation duct with a circular cross section with a diameter of 2 decimeters. How many square decimetres of iron sheet do you need to make this ventilation duct?
2. Immerse an iron block with a volume of 80 cubic centimeters into a rectangular container with a bottom area of 20 square centimeters, and the water level is 10 centimeters. How high is the water level if the iron block is taken out?
3. Make 12 rectangular metal chimneys, each section is 2m long, 4m wide and 3m high. How many square meters of metal should be used at least?
The floor of Xiao Min's room is rectangular. It is 5 meters long and 3 meters wide, and has a 2 cm thick wooden floor. How many cubic meters of wood do you need at least?
5. A coal truck is 2.5m long and1.8m wide when viewed from the inside, and the loaded coal is 0.6m high, with an average weight of1.5t per cubic meter. How many tons of coal does this truck carry?
6. A rectangular tin bucket without a lid, the bottom of which is a square with a side length of 4m and a height of1m.. How much iron does it take to make such a barrel? How many liters of water can this barrel hold?
7. The stadium is paved with 37.5 cubic meters of cinder on a straight runway with a length of 100 meter and a width of 7.5 meters. How thick can cinder be spread?
8. Rectangular children's swimming pool, 40m long,14m wide and1.2m deep. How many square bricks with an area of 16 square decimeter should be pasted on the wall and bottom of the pool now?
9. A cuboid container with a bottom area of 16 square decimeter and a water height of 6 decimeters is now placed in an iron block with a volume of 24 cubic decimeters. How high is the water surface at this time?
10,2100 cubes with a side length of 1 cm are stacked into a cuboid. Its height is 10 cm, and its length and width are greater than its height. What is the circumference of its bottom?
1 1, a rectangular iron sheet with a length of 32 cm, and a square with a length of 4 cm at the lower side of its four corners, then folded and welded into a rectangular iron sheet box without a cover. It is known that the volume of this iron box is 768 cubic centimeters. What is the area of this iron?
12. A rectangular glass jar, with a bottom area of 200 square centimeters and a height of 8 centimeters, contains water with a depth of 4 centimeters. Now put a stone into the water, and the water level will rise by 2 cm. What is the volume of this stone in cubic centimeters?
1. When a factory originally needed 144 to make a machine, it took 48 hours to make a machine after improving the technology. How many machines can you make now, instead of 60 machines?
Xiao Liang spends more money on books than pencils, 0.5 yuan. I bought three pencils at 0. 15 yuan each and five notebooks at 0.65438 yuan each. (column equation solution)
Xiaoming and Xiao Fang are in the same hospital. Xiao Fang walks 50 meters to school every minute. 12 goes to school. Xiaoming walks more than Xiao Fang at school 10 meter. How many minutes does it take Xiao Ming to get to school?
4. The bottom of a trapezoid is 220 meters long, the bottom is 340 meters long and the height is 57.5 meters, with 354.2 thousand oilseeds. How many kilograms of oilseeds are produced on average per hectare?
Two cars, A and B, leave from A and B respectively and meet in 2.5 hours. When they meet, B travels105km, and continues to travel after meeting. After the two cars A and B arrive at B and A respectively, they will drive back immediately. When they met for the second time, B was 90 kilometers away from A, and they asked for the distance between A and B. ..
1.3 tractor cultivates 25.5 hectares in 3.4 hours. How many hectares of farmland does each tractor plow per hour on average? (two ways) (8 points)
2.4.3kg of apples 2 1.5 yuan, 2kg of oranges 16 yuan. How many times more expensive are oranges than apples? (4 points)
1. One pen 8.5 yuan, three ballpoint pens 16.5 yuan. How much is a ballpoint pen cheaper than a pencil?
Aunt Wang bought 400 grams of Cordyceps sinensis and put it in a small bag. If each packet is 30 grams. How many small bags should I prepare at least? (Numbers are reserved as integers)
3. Shimonoseki Kindergarten bought 380 meters of cloth as children's garden clothes. Children's Park takes cloth1.2m each. How many sets can you make at most? (Numbers are reserved as integers)
4. A worker makes 1 5 parts in1hour, and the same worker makes 4.5 hours * * * How many parts are there?
5. A car goes from A to B at a speed of 45 kilometers per hour and arrives in 2.4 hours. I traveled for 2.5 hours when I came back. How many kilometers do I drive per hour on average?
6. The grain store sent 50 bags of rice and 40 bags of flour, each containing 25 kilograms of rice and 20 kilograms of flour. How many kilograms is rice more than flour?
7. Qingfeng pesticide plant bagged 3,000 kilograms of pesticides. 500 bags were packed first, each bag was 50 kilograms. The rest are packed in small bags of 25 kg each. Will 250 packets be enough?
There are five people in Wang Yong's family. In September, the electricity consumption was 250 kWh, and the payment per kWh was 0.65 yuan. How much does the average person in his family pay for electricity in September?
1.3 tractor cultivates 25.5 hectares in 3.4 hours. How many hectares of farmland does each tractor plow per hour on average? (two ways) (8 points)
2.4.3kg of apples 2 1.5 yuan, 2kg of oranges 16 yuan. How many times more expensive are oranges than apples? (4 points)
1. There are 36 boys and 3 girls in Class 5 (1) in Dai Nan Primary School. What is the percentage of boys in the class? What is the percentage of boys to girls?
The road team built a road. On the first day, the road was completed. On the second day, how many parts were left?
3. Make a rectangular water tank without cover with iron sheet, which is 10 decimeter long, 8 decimeters wide and 5 decimeters high. How many square decimetres of iron should be used at least? How many liters of water can this tank hold?
4. Master Zhang made 1 1 in four days, Master Liu made 1 1 in three days and Master Wang made 10 in four days. Who runs fastest? Who is the slowest?
After dividing by a score, you get 5/6. It is known that the sum of denominators of protomolecules is 55. What was the original score?
1. There are 182 students in the Science and Technology Group of Children's Palace in a school, and the number of boys is 1.6 times that of girls. How many boys and girls are in the science and technology group in this school?
Xiao Ming and Xiao Ying started from two places1240m apart and walked in opposite directions. Xiaoming's speed is 80m/min, and Xiaoying's speed is 75m/min. How many minutes did they meet?
3. Master and apprentice process 389 parts together, master processes 42 parts per hour, apprentice processes 34 parts per hour, master and apprentice process 4 hours together, and the rest is completed by apprentice. How many hours does the apprentice need to process?
Xinhua primary school donated money to Project Hope. Four classes in grade four donated an average of 95.20 yuan per class, while three classes in grade five donated 3065438 yuan +0.35 yuan. How much did each class in grade four and five donate?
5. To build the expressway, it was originally planned to build 0.52 meters every day and complete it in 40 days. Actually, 0. 12m more than originally planned is repaired every day. Actually, it will take a few days to finish.
The school canteen uses 1200 pairs of disposable chopsticks every week, each pair of chopsticks is 0. 03 yuan, how much is the chopsticks used every week?
How about a month?
1. A construction site needs 44.5 tons of loess, which was transported 10 times by a truck with a load of 2.5 tons, and the rest was transported by a truck with a load of 1.5 tons. How many times will it be transported?
2. The chemical fertilizer plant plans to produce 540 tons of chemical fertilizer in 36 days, but actually produces 5 tons more every day. How many days will it take to actually finish?
3. The farm tool factory initially manufactured five farm tools, using steel 1.8 tons. After technical innovation, a kind of steel which can save 0.04 tons was produced. The original factory made 240 farm tools out of steel. How much can it make now?
4. The kindergarten bought five towels and five bars of soap. The towel * * cost 2 1.5 yuan and the soap * * cost 13.2 yuan. How much is a towel more expensive than a bar of soap? (Answer in two ways)
5. The fruit shop delivered 45 baskets, with more apples 10 and more oranges 1.2 times. How many baskets of oranges are shipped more than pears?
6. Two workers, A and B, dig the same cave on both sides of the mountain at the same time. Team A drives13.8m every day, while team B drives15.2m every day for 40 days. How many meters is this cave?
7. Two production teams of Jiangnan Textile Factory weave 3240 meters together. Group A weaves118m every day, while Group B weaves125m every day. How many days have the two organizations finished, and there are 324 meters left?
8. A car travels from place A to place B at a speed of 42.5 kilometers per hour, 1.5 hours. At this time, it is 26 kilometers away from the midpoint of the two places. How many kilometers is it between A and B?
9. The passenger and freight vehicles depart from the opposite directions of Party A and Party B at the same time, with the passenger car speed of 42 kilometers per hour and the truck speed of 50 kilometers per hour. Four hours later, the distance between the two cars is still 100 km. What is the distance between a and b?
10, Xiaojun and Xiaoping walked back from A at the same time. Xiaojun walks 70 meters per minute, and Xiaoping rides a bike five times faster than Xiaojun. A few minutes later, they were 3360 meters apart.
1 1, A and B are 660 kilometers apart. A car and a truck leave from A and B relatively. The car travels 48 kilometers per hour, the truck travels 35 kilometers per hour, and the car leaves. A few hours after the truck left, two cars met.
12.A and B leave AB relatively at the same time. Car A travels at a speed of 42 kilometers per hour, and car B travels at a speed of 50 kilometers per hour. On the way, car A stopped driving for 48 minutes due to a fault, and the two cars met on the way 5.3 hours after the departure of car B. How many kilometers is it between A and B?
13. A car goes from place A to place B at a speed of 42.5 kilometers per hour, 1.5 hours. At this time, it is 26 kilometers away from the midpoint of the two places. How many kilometers is it between A and B?
14. Buses and trucks leave from Party A and Party B at the same time. The bus travels 42 kilometers per hour and the truck travels 50 kilometers per hour. After 5.3 hours on the road, two cars met on the road. How many kilometers is it between Party A and Party B?
15, the distance between Party A and Party B is 500 kilometers. The two cars leave the two places at the same time and meet after five hours' driving. Passenger cars average 60 kilometers per hour, and trucks average how many kilometers per hour?
16. A chemical fertilizer plant 10 produced 200.5 tons of chemical fertilizer in the first half of October, 40.2 tons more than in the second half. How many tons of chemical fertilizer are produced in October?
17. there is a batch of coal in the village of agricultural machinery factory. It was originally planned to burn 1.2 tons per day, which can be burned for 25 days. In fact, it can burn for 30 days. How many days a day?
18, A and B are 800 kilometers apart. Two trains leave from A and B at the same time. After five hours, the distance is still125km. One train runs at 65 kilometers per hour, another train runs at 65 kilometers per hour, how many kilometers per hour is the other train?
19. In the past, it took a factory 144 hours to manufacture a machine. After improving the technology, it can take 48 hours less to make a machine. How many more machines can be made in the time of making 60 machines? (Answer in two ways)
20. Xiao Jia spends more money on a book than a pencil. 0.5 yuan bought three pencils, each 0. 15 yuan, and five books. How much is each?
2 1. Workshop A of a factory was originally less than workshop B. Now 10 people have been transferred from workshop A to workshop B. At this time, the number of people in workshop B is three times that of workshop A. How many people are there in workshop A and workshop B?
1.There are 83 students in Class A and Class B, 86 students in Class B and Class C, and 85 students in Class C. How many students are there in each class?
2. Two cows and four sheep graze 27kg a day, six cows and 15 sheep graze 90kg a day, 1 cow and 1 sheep graze 90kg a day.
4. Four basketballs and three volleyballs * * cost 14 1 yuan, five basketballs and four volleyballs * * cost 180 yuan. How much is basketball and volleyball each?
5. Xiao Qiang buys 5 boxes of sugar and Xiaohong buys 5 boxes of cakes, which makes a total of 44 yuan. If Xiao Qiang and Xiaohong exchange a box, the price of everything will be equal. How much is a box of sugar and a box of cake?
6. There are 10 red balls, black balls * *, 7 red balls, white balls * *, and 5 black balls * * *. How many balls are there in each of the three kinds?
1.There are 83 students in Class A and Class B, 86 students in Class B and Class C, and 85 students in Class C. How many students are there in each class?
2. Two cows and four sheep graze 27kg a day, six cows and 15 sheep graze 90kg a day, 1 cow and 1 sheep graze 90kg a day.
4. Four basketballs and three volleyballs * * cost 14 1 yuan, five basketballs and four volleyballs * * cost 180 yuan. How much is basketball and volleyball each?
5. Xiao Qiang buys 5 boxes of sugar and Xiaohong buys 5 boxes of cakes, which makes a total of 44 yuan. If Xiao Qiang and Xiaohong exchange a box, the price of everything will be equal. How much is a box of sugar and a box of cake?
6. There are 10 red balls, black balls * *, 7 red balls, white balls * *, and 5 black balls * * *. How many balls are there in each of the three kinds?
1.There are 83 students in Class A and Class B, 86 students in Class B and Class C, and 85 students in Class C. How many students are there in each class?
2. Two cows and four sheep graze 27kg a day, six cows and 15 sheep graze 90kg a day, 1 cow and 1 sheep graze 90kg a day.
4. Four basketballs and three volleyballs * * cost 14 1 yuan, five basketballs and four volleyballs * * cost 180 yuan. How much is basketball and volleyball each?
5. Xiao Qiang buys 5 boxes of sugar and Xiaohong buys 5 boxes of cakes, which makes a total of 44 yuan. If Xiao Qiang and Xiaohong exchange a box, the price of everything will be equal. How much is a box of sugar and a box of cake?
6. There are 10 red balls, black balls * *, 7 red balls, white balls * *, and 5 black balls * * *. How many balls are there in each of the three kinds?
1.There are 83 students in Class A and Class B, 86 students in Class B and Class C, and 85 students in Class C. How many students are there in each class?
2. Two cows and four sheep graze 27kg a day, six cows and 15 sheep graze 90kg a day, 1 cow and 1 sheep graze 90kg a day.
4. Four basketballs and three volleyballs * * cost 14 1 yuan, five basketballs and four volleyballs * * cost 180 yuan. How much is basketball and volleyball each?
5. Xiao Qiang buys 5 boxes of sugar and Xiaohong buys 5 boxes of cakes, which makes a total of 44 yuan. If Xiao Qiang and Xiaohong exchange a box, the price of everything will be equal. How much is a box of sugar and a box of cake?
6. There are 10 red balls, black balls * *, 7 red balls, white balls * *, and 5 black balls * * *. How many balls are there in each of the three kinds?
Respondent: Xu Jiabai-probationary period level 1 2008-2-5 14:25
1. Laying underground cables on Zhongyuan Road, 34 meters have been laid, and 250 meters have not been laid. How long is this cable?
2. Repair a section of road. The full length 1/4 was repaired on the first day, and 90 meters was repaired on the second day. At this time, there is still150m to be repaired. How long is this road?
There is a pile of yellow sand on the construction site, which is 23% used and just 60 tons used. How many tons is this pile of yellow sand?
4. Sound travels in the air for about 3 seconds 1 km, 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 several 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 kg of flour can be ground with 5000 kg of wheat to get the flour yield of wheat.
8. Wheat flour yield is 80%. How many kilograms of wheat does it take to grind 640 kilograms of flour?
9. There are 50 students in Class 6 (1), and one day there are two students on leave, so what is the attendance rate that day?
10, arbor day * * * planted a number of trees, 485 trees survived, 15 trees did not survive. Seek the survival rate of this tree planting.
1 1. Miss Wang went to the sporting goods store and bought five small footballs. She paid 100 and got back 32.5. How much is each small football?
12. Two cars, A and B, leave from two places 255 kilometers apart at the same time. Car A travels 52 kilometers per hour and car B travels 57 kilometers per hour. A few hours later, the distance between the two cars is still 37 kilometers.
13, master and apprentice * * * processed 208 machine parts, and the number of parts processed by master was four times that of apprentice. How many parts did the master and apprentice process respectively?
14. Wang Fang's deposit is 2.2 times that of Li Li. If Lili deposits 75 yuan in the bank again, the deposits of the two people will be equal. How much did each of them save?
15, grade five, bought a batch of notebooks for three excellent students. If each student is awarded 5 copies, there are still 3 copies. If each person sends 6 copies, it will be less 12 copies. How many "three good" students did you choose 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 shop. The first basket weighs 26 kilograms and the second basket weighs 29 kilograms. The second basket sold 9 yuan more than the first one. What is the average price of oranges? (Solve in two ways)
18, trapezoidal wheat field, covering an area of 540m2, height18m, upper bottom 20m, and lower bottom 20m?
19. Two cars, A and B, set off from two places 750 kilometers apart at the same time, face to face and meet in five hours. Car A travels 80 kilometers per hour, and how many kilometers does car B travel per hour?
20. Two cars leave from the same place at the same time. After driving for 4.5 hours, car A lags behind car B 13.5 km. It is known that car A travels 35 kilometers per hour. How many kilometers does bus 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, each with 9 people. How many people went for a spring outing?
22.A * * * There are 150 people going for a spring outing, and 54 people have already left. The rest will be transported by two cars. How many people can each car carry 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 flowers, and Xiaohong made 18 fewer flowers than Xiaojun. How many flowers did they make together?
25. I bought 25kg Chinese cabbage for the first time and175kg Chinese cabbage in the canteen for the second time. How much does it cost to buy Chinese cabbage in the canteen at 6 cents per kilogram?