Who will give me some exercises about nutrition catering in the first volume of sixth grade mathematics in primary school? How to get high marks in English composition? A horizontal conjunctional phrase: how do the opening sentence and the closing sentence (high school students) download the theme from Tianyi Winging Mobile FLT-V?
The sixth grade mathematics Olympic Games application problem 10 (with the answer) Spiders have 8 legs, dragonflies have 6 legs and 2 pairs of wings, and cicadas have 6 legs 1 pairs of wings. Now these three kinds of bugs *** 18 have 18 legs and 20 pairs of wings. How many bugs are there in each species?
A triangular piece of land with a bottom height of 358m and a height of160m. What is the area of this land? How many hectares?
Zhang Ming and Li Hong started from two places at the same time and came relatively. Zhang Ming walks 50 meters per minute and Li Hong walks 40 meters per minute. 12 minutes later, they met. How many meters are they apart?
The distance between A and B is 255 kilometers, and two cars leave both places at the same time. Car A travels 48 kilometers per hour and car B travels 37 kilometers per hour. Two cars meet in a few hours.
Xiangqun Stationery Factory can produce 250 stationery boxes per hour. How many hours can you produce 10000?
The factory sent a batch of coal, burned 28 tons, and left 13 tons. How many tons is this batch of coal?
A rectangular iron box, length 18cm, width 15cm and height 12cm. How many square centimeters of iron does it take to make this iron box?
The side length of a cube is15cm. What is its surface area and volume?
When does the big clock of the railway station strike a few times, for example, 1, 2 o'clock, every half hour. Ask this big clock?
The master works 8 hours, the apprentice works 6 hours, and * * * makes 3 12 parts. It is known that the number of parts made by the apprentice in 5 hours is equal to that made by the master in 2 hours. How many parts do the master and apprentice make every hour?
Xiao Ming drinks a cup of pure milk, first 20%, then add water and mix well, and then drink half a cup. What percentage of pure milk is left in the cup?
Xiao Qiang used to write an average of 25 words per minute, but now he writes an average of 40 words per minute. What percentage does Xiao Qiang type more now than before?
In the past, there was a children's clothing and a 20 yuan. After the price increase of 10% last year, the price will be reduced by 10% this year. What's the current price?
It used to take 10 hours to go to Beijing by train from Wuhan, but now the train is speeding up and it will arrive in 8 hours. How much time does it save to go to Beijing by train now?
Li Ming's family used to use 120 kwh per month, but now it uses about 90 kwh per month due to node measures. What percentage are you saving now?
The ratio of category 6 (1) to category 6 (2) is 5:4. What percentage of students in Class 6 (1) are more than those in Class 6 (2)?
The road team plans to build 4.5 kilometers of roads, and three-eighths of them have been built. It hasn't been fixed for long.
There are 120 workers in a workshop. After it snows, five-eighths of male workers and three-sevenths of female workers go to sweep the snow. It is understood that it takes 64 people to sweep snow. How many women workers are there in this workshop?
Cut off a third of the cylindrical steel. The side length of the cut steel is square, and the circumference of the square is 50.24 cm. How many cubic centimeters is the raw steel? If steel weighs 7.8 grams per cubic centimeter, how many kilograms does the raw steel weigh? (The number shall be kept to one decimal place)
If 18 people are transferred from the first workshop to the second workshop, the first workshop is one quarter more than the second workshop. How many people are there in the two workshops?
Answer:
Chickens and rabbits in the same cage: 18*6= 108 (strips)
118-108 =10 (article)
8-6= 2 (bar)
10/2=5 (only) ... Spider; Spider-like objects; Star wheel; Cross; Connecting handle; crosshead
18-5= 13 (only) ... Dragonflies and cicadas
13* 1= 13.
20- 13=7 (right)
2- 1= 1 (right)
7/ 1=7 (only) ... Dragonflies
13-7=6 (only) ...
358* 160/2
=57280/2
= 28,640 square meters
28,640 square meters ≈43 hectares
(40+50)* 12
=90* 12
= 1080 (m)
2 255/(37+48)
=255/85
=3 (hours)
1 solution: assume that x hours can produce 10000 pieces.
250x= 10000
250x/250 = 10000/250
x=40
Solution: suppose this batch of coal has x tons.
x-28= 13
x-28+28= 13+28
x= 4 1
( 18* 15+ 18* 12+ 15* 12)*2
=(270+2 16+ 180)*2
=666*2
= 1332 (square centimeter)
2 Surface area: 15* 15*6
=225*6
= 1350 (square centimeter)
Volume: 15* 15* 15
=225* 15
=3375 (cubic centimeter)
Arithmetic progression: (1+12) *12 * 2 =156 * 2 = 312 (below)
1*24=24 (below)
24+3 12=336 (below)
Apprentice efficiency: Master efficiency = 2: 5.
Apprenticeship time: Master time = 5: 2.
6/5*2=2.4 (hours)
3 12/(8+2.4)=30 (pieces) (main)
30/5*2= 12 (individual) (apprentice)
1 x ( 1-20%) X 50% = 40%
1 x ( 1-20%) X 50% = 40%
(40-25)÷25=60%
20× (1+10%) ↓ (1-10%) = 20.8 yuan.
( 10-8)/ 10* 100%=20%
( 120-90)/ 120* 100%=25%
(5-4)/4* 100%=25%
180× (4.5÷ 3)+180 = 450 (km)
1÷5/8= 1.6
64× 1.6= 102.4
120- 102.4= 17.6
3/7× 1.6=24/35
17.6÷ (1-24/35) = 56 (person)
50.24 ÷ 4 = 12.56 (cm)
12.56 ÷ 1/3 = 37.68 (cm)
12.56 ÷ 3. 14 ÷ 2 = 2 (cm)
Volume: 3. 14×2×2×37.68≈473 (cubic centimeter)
Weight: 473× 7.8 = 3689.4g ≈ 3.7kg.
Suppose there are x people in the second workshop and 1.5x people in the first workshop.
1.5x- 18 =( 1+ 1/4)X
X=72， 1.5X= 108
Mathematics application problems and answers in the last semester of sixth grade in primary school 1. Fill in the blanks. (20 points)
1 and 6×23 stand for ().
2, 1 12 tons = () kg, 20 minutes = ().
3、( )4 = 9 :( ) = 75%。
4. 1: 1.8 The simplest integer ratio is (), and the ratio is ().
5. 23 of () is 60, and 23 of 60 is ().
6. Divide the 3-meter-long rope into 5 segments on average, each segment is () meters long, and each segment accounts for () of the total length.
7. 15 of a number is 30, and 30% of this number is ().
8. There are two circles, the big one and the small one, with a diameter ratio of 2: 3, so their perimeter ratio is () and their area ratio is ().
9. In 3. 14, 3 1.4%, 3. 14 and л, the maximum number is () and the minimum number is ().
10, the diameter of the semicircle is 6 cm, the circumference is () cm, and the area is () cm2.
Second, judge. (Mark "√" for the right and "×" for the wrong, 10)
1, fractional division has the same meaning as integer division. ( )
2. When a number is multiplied by a fraction, the product must be less than the original number. ( )
3, 1 kg of 47 is as heavy as 4 kg of 17. ( )
4.A number is 20% larger than B number, and B number is 20% smaller than A number. ( )
5. The first and last items of the ratio are multiplied or divided by the same number at the same time, and the ratio remains unchanged.
6. The reciprocal of 1 is1,and the reciprocal of 0 is 0. ( )
7. After the price of a commodity increased by 15%, the price was reduced by 15%, and now the price is lower than the original price. ( )
8. The reciprocal of a number must be less than itself. ( )
9. If the radius of a circle is enlarged by 2 times, the area will be enlarged by 4 times. ( )
10, a circle with a radius of 2 cm and equal perimeter and area. ( )
Third, choose. (Fill in the serial number of the correct answer in brackets, 10)
1, put 10g salt into 10g water, and the ratio of salt to brine is ().
① 1 :9 ② 1 : 10 ③ 1 : 1 1
2. The number 56 of A is equal to the number 34 of B. Compare these two numbers ().
① the number of a is large; (2) the number of B is large; ③ It's the same.
The number 3.24 where 5 is more than 14 is (). ① 1 ② 1 1 ③96
4, there are more boys than girls in a class 15, then girls account for the whole class ().
① 56 ② 59 ③ 5 1 1
5. In the figure below, the symmetry axis is the most ().
① Square ② Equilateral triangle ③ Circle
6. The volume of water increases after freezing 1 10, and the volume of water decreases after freezing ().
① 1 1 1 ② 1 10 ③ 19
Fourth, the calculation problem. (24 points)
1, parting calculation (12 points):
8×56 + 25 ÷4 13 ÷(23 — 25 )×35
3 ×(2 15 + 1 12 )— 25 49 ÷ [ 45 —( 15 + 13 )]
2, solve the equation (6 points):
1-34 X = 35 X- 14 X = 38 1.25:0.25 = X 1.6
4. Formula and equation calculation (6 points): ② A number plus 50% of it, etc.
① 23 of a number is 16. What is its 45? 7.5, what's the number?
Verb (abbreviation of verb) completes the following questions as required. (6 points)
The circumference of the circle on the right is 18.84 cm.
Find the area of the shaded part in the picture.
Sixth, the application problem. (33 points)
1, only column types are not counted (8 points).
(1) After streamlining, the number of staff in a public institution is 120, which is 40 less than the original. By what percentage?
(2) A machine factory used 68 tons of steel in May, saving 14 tons compared with the original plan, and saving a few percent?
(3) The apprentice processed 45 parts, 5 more than the master's 12. How many parts has the master processed?
(4) A section of road is 30 kilometers long, and it takes 10 day for Team A to maintain independently, and 15 day for Team B to maintain independently. How many days can the two teams fix it together?
2, column or equation solution (25 points).
(1) A bag of rice was eaten 40% in the first week and 15 in the second week, leaving 6 kg. How many kilograms is this bag of rice?
The math application problems (with answers) in the first volume of the sixth grade are all my painstaking efforts.
1. Due to the improvement of equipment, the daily output of a factory increased from 40 tons to 70 tons, an increase of several percent?
(70-40) divided by 40=30 divided by 40= 75%
2. The original price of a commodity is 20% lower than the current price, and the current price is 1028 yuan. What is the original price?
1- 20% = 80 1028 divided by 80% = 1285 yuan.
3. A coat is more expensive than a pair of trousers 160 yuan, in which the price of trousers is 3/5 of that of a coat. How much is a pair of trousers?
1+3/5=8/5 160 divided by 8/5= 100 yuan.
4. There are 60 black rabbits in the feeding group, and the number of white rabbits is more than that of black rabbits 1/5. How many white rabbits are there?
1+ 1/5=6/5 60 divided by 6/5=50.
5. Make a 600g bean paste bun, and the ratio of flour, red beans and sugar is 3:2: 1. How many grams of flour, red beans and sugar do you need?
3+2+ 1=6 600 divided by 6 =100g
Flour: 3 times 100 = 300g.
Red beans: 2 times 100 = 200g.
Sugar: 1 times 100 = 100g.
Seek 12 math application problems in the sixth grade of primary school mathematics, with formula answers! Urgent. Once two barrels of oil weigh 275, take out five-nineths of the first barrel and four-sevenths of the second barrel, and the remaining two barrels weigh the same. How many kilograms are there in the first two barrels?
Solution:. Four-nineths of the first bucket is equal to three-sevenths of the second bucket. So the weight ratio of the two barrels is three-sevenths: four-nineths = 27: 28.
So the first bucket has 275 * 27/(28+27) = 135.
The second bucket has 275 * 28/(27+28) = 140.
A bamboo pole is inserted in the river, and the water accounts for one third of the total length, one third more than the mud, and the length above the water surface is 3 meters. What is the total length of this bamboo pole?
Solution: Because there is 1/3 in the water, more than 1/3 in the mud, and 4/3 in the mud, there is (1/3) * (4/3) = 1/4 in the mud, so there is some nudity.
1-1/3-1/4 = 5/12 = 3m, so the total length = 3/(5/12) = 7.2m..
Three, two production groups in a workshop planned to produce 680 parts, but the two groups actually produced 798 parts. The number of parts produced by group A is one fifth more than that of this group task, and the number of parts produced by group B is only three twentieth more than that of this group task. What was the initial task of the two works?
Solution: A actually produces 6/5 of the original plan, and B actually produces 23/20 of the original plan.
If Party A and Party B completed 6/5 of the original plan, they should have produced 680 * 6/5 = 8 16, and now the actual production is 798, which means that Party B did not reach 6/5 of the original plan, and what Party B actually completed was less than 6/5(6/5-23/20)= 65438.
So b 18/( 1/20) = 360.
A originally planned to complete 680-360 = 320.
Who gave me ten application problems? A train is 120 meters long and passes through a bridge 880 meters long at a speed of 50 kilometers per hour. How many seconds does it take for the train to get on the bridge and leave completely? Answer: 50km = 50000m50000/(60 * 60) =125/9 (m)120+880 =1000 (m)1000/(/kloc. 2.6 Class (1) Today, 48 students came to the school, and 2 people took time off to ask for the attendance of this class today. My mother saved 5000 yuan in the bank for two years, with an annual interest rate of 2.25%. My mother has to pay 20% interest tax to withdraw money when it is due. How much should my mother pay? How much does mom get after paying taxes? Answer 1. Solution: Let a page be ***X, then 40%X-25%X=6 X=40 A: 1 * * 40 pages 2. Solution: 48/(48+2)=* 100%=96% A: The attendance rate is 96% 3. Interest = principal * interest rate * periodic interest = 50000.
The first volume of mathematics in the sixth grade of primary school urgently needs answers (50 questions)! You should think about it! Want an answer, I didn't test myself, not good! You can't ask that question, but you can't copy the answer!
I hope the landlord will adopt it!
I wish you progress in your study!
Math application problems in sixth grade of primary school. The areas of vineyards and apple orchards are 3 times and 5 times respectively.
5x-3x=0.8
x=0.4
5x=5x0.4=2 hectares
3x=3x0.4= 1.2 ha.
Please adopt
There are seven answers to the third application problem in the sixth grade elementary school mathematics target unit, and the seven answers in the third lesson are: 9: 100.
The answer in the fifth lesson is: 640/(5+3)=80.
5*80=400(M2)
3*240=240(M2)