480÷80= 16×5= 27×3= 90÷ 15=
48÷4= 640÷ 16= 39÷3= 24×20=
32×3= 48÷ 16= 12×8= 27×3=
56÷ 14= 24÷8= 14×2= 83-45=
560÷80= 96÷24= 40÷20= 40×30=
37+26= 76-39= 605+59= 30×23=
12×8= 27+32= 48+27= 4500×20=
73+ 15 = 120×600 = 200×360= 6800×400=
280+270= 4×2500= 6000÷40= 5× 1280=
3 10-70= 400× 14= 470+ 180= 1000÷25=
160×600= 20×420= 290×300= 8 100÷300=
7600÷200= 7600÷400= 680+270= 980÷ 14=
4200÷30= 6× 1300= 1300×50= 200×48=
930-660= 530+280= 9200÷400= 840÷2 1=
180×500= 8000÷500 = 1900÷20= 200× 160=
8700÷300= 300×330= 3× 1400= 7000÷ 14=
600÷ 12= 9600÷80= 140×300= 8800÷40=
9600÷800= 750-290= 5×490= 760×20=
7500÷500= 370×200= 650÷ 13= 8600-4200=
,640÷80= 15×5= 23×3= 12×2×5= ,480÷80= 16×5= 27×3= 90÷ 15= ,48÷4= 640÷ 16= 39÷3= 24×20= , 32×3= 48÷ 16= 12×8= 27×3= ,56÷ 14= 24÷8= 14×2= 83-45= ,560÷80= 96÷24= 40÷20= 40×30= ,37+26= 76-39= 605+59= 30×23= , 12×8= 27+32= 48+27= 4500×20= ,73+ 15 = 120×600 = 200×360= 6800×400= ,280+270= 4×2500= 6000÷40= 5× 1280= , 3 10-70= 400× 14= 470+ 180= 1000÷25= , 160×600= 20×420= 290×300= 8 100÷300= , 7600÷200= 7600÷400= 680+270= 980÷ 14= ,4200÷30= 6× 1300= 1300×50= 200×48= ,930-660= 530+280= 9200÷400= 840÷2 1= , 180×500= 8000÷500 = 1900÷20= 200× 160= ,8700÷300= 300×330= 3× 1400= 7000÷ 14= , 600÷ 12= 9600÷80= 140×300= 8800÷40= ,9600÷800= 750-290= 5×490= 760×20= ,7500÷500= 370×200= 650÷ 13= 8600-4200=,, 640÷80= 15×5= 23×3= 12×2×5= ,480÷80= 16×5= 27×3= 90÷ 15= ,48÷4= 640÷ 16= 39÷3= 24×20= , 32×3= 48÷ 16= 12×8= 27×3= ,56÷ 14= 24÷8= 14×2= 83-45= ,560÷80= 96÷24= 40÷20= 40×30= ,37+26= 76-39= 605+59= 30×23= , 12×8= 27+32= 48+27= 4500×20= ,73+ 15 = 120×600 = 200×360= 6800×400= ,280+270= 4×2500= 6000÷40= 5× 1280= , 3 10-70= 400× 14= 470+ 180= 1000÷25= , 160×600= 20×420= 290×300= 8 100÷300= , 7600÷200= 7600÷400= 680+270= 980÷ 14= ,4200÷30= 6× 1300= 1300×50= 200×48= ,930-660= 530+280= 9200÷400= 840÷2 1= , 180×500= 8000÷500 = 1900÷20= 200× 160= ,8700÷300= 300×330= 3× 1400= 7000÷ 14= , 600÷ 12= 9600÷80= 140×300= 8800÷40= ,9600÷800= 750-290= 5×490= 760×20= ,7500÷500= 370×200= 650÷ 13= 8600-4200=,, 640÷80= 15×5= 23×3= 12×2×5= ,480÷80= 16×5= 27×3= 90÷ 15= ,48÷4= 640÷ 16= 39÷3= 24×20= , 32×3= 48÷ 16= 12×8= 27×3= ,56÷ 14= 24÷8= 14×2= 83-45= ,560÷80= 96÷24= 40÷20= 40×30= ,37+26= 76-39= 605+59= 30×23= , 12×8= 27+32= 48+27= 4500×20= ,73+ 15 = 120×600 = 200×360= 6800×400= ,280+270= 4×2500= 6000÷40= 5× 1280= , 3 10-70= 400× 14= 470+ 180= 1000÷25= , 160×600= 20×420= 290×300= 8 100÷300= , 7600÷200= 7600÷400= 680+270= 980÷ 14= ,4200÷30= 6× 1300= 1300×50= 200×48= ,930-660= 530+280= 9200÷400= 840÷2 1= , 180×500= 8000÷500 = 1900÷20= 200× 160= ,8700÷300= 300×330= 3× 1400= 7000÷ 14= , 600÷ 12= 9600÷80= 140×300= 8800÷40= ,9600÷800= 750-290= 5×490= 760×20= ,7500÷500= 370×200= 650÷ 13= 8600-4200=,, 640÷80= 15×5= 23×3= 12×2×5= ,480÷80= 16×5= 27×3= 90÷ 15= ,48÷4= 640÷ 16= 39÷3= 24×20= , 32×3= 48÷ 16= 12×8= 27×3= ,56÷ 14= 24÷8= 14×2= 83-45= ,560÷80= 96÷24= 40÷20= 40×30= ,37+26= 76-39= 605+59= 30×23= , 12×8= 27+32= 48+27= 4500×20= ,73+ 15 = 120×600 = 200×360= 6800×400= ,280+270= 4×2500= 6000÷40= 5× 1280= , 3 10-70= 400× 14= 470+ 180= 1000÷25= , 160×600= 20×420= 290×300= 8 100÷300= , 7600÷200= 7600÷400= 680+270= 980÷ 14= ,4200÷30= 6× 1300= 1300×50= 200×48= ,930-660= 530+280= 9200÷400= 840÷2 1= , 180×500= 8000÷500 = 1900÷20= 200× 160= ,8700÷300= 300×330= 3× 1400= 7000÷ 14= , 600÷ 12= 9600÷80= 140×300= 8800÷40= ,9600÷800= 750-290= 5×490= 760×20= ,7500÷500= 370×200= 650÷ 13= 8600-4200=,, 640÷80= 15×5= 23×3= 12×2×5= ,480÷80= 16×5= 27×3= 90÷ 15= ,48÷4= 640÷ 16= 39÷3= 24×20= , 32×3= 48÷ 16= 12×8= 27×3= ,56÷ 14= 24÷8= 14×2= 83-45= ,560÷80= 96÷24= 40÷20= 40×30= ,37+26= 76-39= 605+59= 30×23= , 12×8= 27+32= 48+27= 4500×20= ,73+ 15 = 120×600 = 200×360= 6800×400= ,280+270= 4×2500= 6000÷40= 5× 1280= , 3 10-70= 400× 14= 470+ 180= 1000÷25= , 160×600= 20×420= 290×300= 8 100÷300= , 7600÷200= 7600÷400= 680+270= 980÷ 14= ,4200÷30= 6× 1300= 1300×50= 200×48= ,930-660= 530+280= 9200÷400= 840÷2 1= , 180×500= 8000÷500 = 1900÷20= 200× 160= ,8700÷300= 300×330= 3× 1400= 7000÷ 14= , 600÷ 12= 9600÷80= 140×300= 8800÷40= ,9600÷800= 750-290= 5×490= 760×20= ,7500÷500= 370×200= 650÷ 13= 8600-4200=,, 640÷80= 15×5= 23×3= 12×2×5= ,480÷80= 16×5= 27×3= 90÷ 15= ,48÷4= 640÷ 16= 39÷3= 24×20= , 32×3= 48÷ 16= 12×8= 27×3= ,56÷ 14= 24÷8= 14×2= 83-45= ,560÷80= 96÷24= 40÷20= 40×30= ,37+26= 76-39= 605+59= 30×23= , 12×8= 27+32= 48+27= 4500×20= ,73+ 15 = 120×600 = 200×360= 6800×400= ,280+270= 4×2500= 6000÷40= 5× 1280= , 3 10-70= 400× 14= 470+ 180= 1000÷25= , 160×600= 20×420= 290×300= 8 100÷300= , 7600÷200= 7600÷400= 680+270= 980÷ 14= ,4200÷30= 6× 1300= 1300×50= 200×48= ,930-660= 530+280= 9200÷400= 840÷2 1= , 180×500= 8000÷500 = 1900÷20= 200× 160= ,8700÷300= 300×330= 3× 1400= 7000÷ 14= , 600÷ 12= 9600÷80= 140×300= 8800÷40= ,9600÷800= 750-290= 5×490= 760×20= ,7500÷500= 370×200= 650÷ 13= 8600-4200=,,640÷80= 15×5= 23×3= 12×2×5=
1 A workshop can produce 120 class a parts, 100 class b parts or 200 class c parts every day. Class A, Class B and Class C can be selected respectively, and 1 part constitutes a set. Now it is required to produce the most complete set of products within 30 days. How many days does it take to produce three parts, A, B and C?
A math book is 6.25 yuan and a Chinese book is 5.86 yuan. Two books and one * * *, how much is it?
A watermelon weighs 4.86 kg and a cantaloupe weighs 3.5 kg. How many kilograms is a watermelon heavier than a cantaloupe?
A kind of wool costs 48.36 yuan per kilogram. How much is 3 kilos? Buy 0.6 kg?
A professional sericulture group raises 2 1 silkworm, and a * * * produces cocoons 1240 kg. How many kilograms of cocoons are produced per piece on average?
6 Xiaohong has read the story book for 5 days, reading 12 pages every day, and has not finished reading 38 pages. How many pages are there in this book? (Draw a line segment)
7. Three bags of flour and three bags of rice in the canteen. Flour is 25 kg per bag and rice is 50 kg per bag. How many kilograms of flour and rice are shipped?
The militia used 250 bullets for the first time, 320 bullets for the second time, and the third time was less than the sum of the previous two times 180. How many bullets were used for the third time?
9 The school bought 45 boxes of colored chalk, and white chalk bought 15 boxes more than colored chalk. How many boxes of chalk do I buy?
10. An empty basket weighs 2 kilograms, and there are 32 kilograms of peanuts in the basket. How many times the weight of the basket containing peanuts is that of the empty basket?
1 1. The grain store sent two truckloads of flour, each with 80 bags of 25 kilograms. How many kilograms of flour did this grain shop send? (Answer in two ways)
12 and 3 students went to the vegetable garden to collect cabbage, and they were divided into four groups, each group 1 1 person, with an average of 45 kilograms per person. A * * * How many kilograms of cabbage?
13 chemical fertilizer plant plans to produce 7200 tons of chemical fertilizer, which has been produced for four months, with an average of 1200 tons of chemical fertilizer per month, with 800 tons remaining per month. How many months will it take to complete the production?
14. The plastic factory plans to produce 1300 plastic modules and 780 plastic modules in 6 days. According to this calculation, how many days will it take to produce the rest?
15. Li Shifu produced 252 parts in four hours in the morning, and worked at this speed for three hours in the afternoon. How many parts does Li Shifu produce on this day?
16 cement plant plans to produce 3600 tons of cement, which will be completed in 20 days. In fact, it produces 20 tons more than planned every day. How many days does it actually take to complete the task?
17. A pile of 3.6 tons of coal is planned to burn 10 day. After improving the stove, it saves 0.06 tons per day compared with the original plan. How many days can this pile of coal burn now?
18.A and B are 420km apart. A to B plan to take a bus for 7 hours. In fact, its speed is more than planned 10 km. How many hours will it actually arrive?
Xiao Qiang came back to school from home. If he walks 50 meters every minute, 12 minutes to go back to school. If he walks 10 meter per minute, he can go back to school a few minutes earlier.
20. Build a 6.4-kilometer-long expressway, with 1.2 kilometers per month for the first three months and 1.4 kilometers per month for the rest. How many months will it take to complete?
9. Xiaoming spent 10.2 yuan on stationery, bought six pencils at 0.45 yuan each, and bought ballpoint pens for the rest. How many can he buy for each 2.5 yuan?
10. The garment factory originally planned to make 120 suits, each with 4.8m cloth. After improving the cutting method, each set saves 0.3 meters of cloth. How many sets of clothes can be made from the original cloth now?
1 1. A story book, originally 576 words per page, 25 pages. The second edition, with smaller words, only needs 18 pages. How many words are arranged on each page now than before?
12. A passenger train and a freight train leave from Party A and Party B at the same time. The speed of passenger trains is 80 kilometers per hour, and that of freight trains is 60 kilometers per hour. Five hours later, two trains met. How many kilometers is the railway between A and B?
13. Two engineering teams open1500m tunnel at the same time. Construction team A starts from one end and digs 14m every day. Construction team B starts from the other end and digs 16m every day. How many days can the tunnel be dug?
14. Party A and Party B type a 7000-word manuscript at the same time. Party A types 600 words per hour, and Party B types 200 words more than Party A. How many hours does it take to complete the task?
15. After school, Xiao Ming and Xiao Qiang walk in opposite directions at the school gate. Xiaoming walks 70 meters per minute, and Xiao Qiang walks 68 meters per minute. How many meters are they apart after 5 minutes?
16, the distance between a and b is 630 kilometers. Two hours after the bus departs from A, the truck departs from B. It is known that the speed of the bus is 65 kilometers per hour and the speed of the truck is 60 kilometers per hour. A few hours after the van left, it met the bus.
17, the machine tool factory used to know that each machine tool used steel 1.02 tons. After the improved design, each machine tool saves 0. 12 tons compared with the original machine tool. How many machine tools can be made now?
18, Xiaoming bought six pencils and four exercise books at 0.68 yuan each and 0.24 yuan each. Xiao Ming paid 5 yuan money, how much should he get back?
19, A and B trains leave from two places at the same time. The speed of train A is 80 kilometers per hour, and that of train B is 70 kilometers per hour. 12 hours later, the distance between the two trains is still 1 10 km. How many kilometers are there between these two places?
20. Guangming Paper Mill produced a batch of newsprint, which was originally planned to be completed in 28 days, with a daily output of 12.5 tons. The application was completed three days in advance. How many tons is the actual daily output more than originally planned?
2 1, a batch of parts were produced in Li Shifu, and 126 parts were produced three days ago. According to this calculation, it takes 12 days to complete the production task. How many parts are there in this batch?
22. The fertilizer plant planned to produce 84 tons of fertilizer in 30 days, but actually produced 0.2 tons more than planned every day. How many days did it actually finish the task ahead of schedule?
23. A car factory planned to produce16,800 cars throughout the year, and as a result, the annual production task was completed two months ahead of schedule. At this rate, how many cars can be produced throughout the year?
24. A workshop of Xinfeng Agricultural Machinery Factory processes 2480 parts. Originally, 100 pieces were processed every day, and after working for 20 days, 120 pieces were processed every day. So we can finish the task in a few days.
25. A clothing factory used to make a children's dress, using 2.2 meters of cloth at a time. Now the cutting method has been improved, and each set saves 0.2 meters of cloth. The cloth used to make 600 sets of this kind of clothes, how many sets can be made now?
26. Xiaohong bought three exercise books and three new word books, one for 0.36 yuan and the other for 0.32 yuan. How much did Xiaohong spend less on new word books than on exercise books?
27. Students carry water to water trees. Forty-five trees were watered in the third grade, 10 fewer trees were watered in the third grade than in the fourth grade, and half fewer trees were watered in the fourth grade than in the fifth grade. How many more trees are watered in the fifth grade than in the third grade?
A car traveled 280 kilometers from A to B, 500 kilometers away. Find the ratio of the distance traveled to the remaining distance.
Team A/KLOC completed a project in 0/0 day and team B completed it in 8 days. What is the work efficiency ratio between team A and team B?
There are 40 students in Class 5 (1), and 32 students have reached the standard of physical exercise. What percentage of the students in this class fail to meet the standard (that is, fail rate)?
3 1, Xiao Li, Xiao Zhao and Xiao Wang jointly produced a batch of parts. After completion, Xiao Li counts the total, Xiao Zhao counts the total, and Xiao Wang counts the total. Find the ratio of the number of parts made by three people.
Class 32' 5 took the first math exam (1), 48 students passed and 2 failed. Seek the passing rate of this math exam.
33. One day, there were 38 employees in a workshop, and two were absent, so they asked for attendance.
34. A factory completed 56% of the planned output in the first half and 64% in the second half. What percentage has it increased this month?
The unit price of a set of self-study books is 160 yuan, which is lower than the original price. 40 yuan, what's the current price?
36 Young Pioneers Greening Group planted 360 trees in spring and 440 trees in autumn, and 760 trees survived, so as to seek the survival rate of saplings.
The moon cake factory produced moon cakes 140 tons last year and 2 10 tons this year. Compared with last year, what is the growth rate this year?
What percentage is 6 kg more than 5 kg? How much is 5 kg less than 6 kg?
A factory completed 56% of the planned output in the first half and 64% in the second half. What percentage has it increased this month?
The planned number of garments produced by garment factories in the second half of the year is 20% higher than that in the first half of the year, so what proportion of the planned number of garments produced in the second half of the year?
4 1. The oil yield of rapeseed is 38%. How many tons of oil can 5 tons of rapeseed process?
42. It is planned to invest 5 million yuan to build a waterworks, which is actually 5% less than planned. How many million yuan was saved?
43. The oil yield of rapeseed reached 85%. Qinfen Village planted 8 hectares of rapeseed, and harvested 3,750 kilograms of rapeseed per hectare. * * * How many Jin of rapeseed can you produce?
44. There are 200 sixth-grade students in Xinzhuang Primary School, of whom 120 participates in interest groups. How many people do you need to participate in the interest class to reach 88%?