人教版小学数学六年级期末复习重点难点知识点_百度知道（Know the sixth grade primary school mathematics review of key and difficult knowledge points _ Baidu teach）Know the Baidu home page | Baidu know | login | registered experts interpret the job hunt version of the sixth grade primary school mathematics review of key and difficult knowledge points _ Baidu teach= graduate unemployment! There are job experts to solve your problems; all kinds of job information for you to read at any time; more famous positions, you apply for!Go to seePost Bar news page MP3 photo video encyclopedia library help | setBaidu knows [education / Science] primary school educationPEP edition, primary mathematics, grade six, final review, key points, difficulties, knowledge pointsViews: 1117 reward points: 50 | question time: 2009-12-12 19:20 | questionger: why is closed | arrive happinessTo list, to recite, to refine. Problem supplement:More popular, I can understand, please.It is better to add 3 simple to difficult questions at the backof each knowledge point.I want to understand! I was only back, there's a reason I. Will offer a reward!There are 4 other answers1 number per copy = totalThe total number of copies per =.The total number of copies of each number =.21 multiples * multiples = multiplesA few times, 1 times times =A few times, ratio = 1 times3 speed x time = distanceDistance / speed = timeTime = distance / speed4 unit price = quantity = total pricePrice / price = numberThe total number of 83019 = price5 work efficiency * working hours = work amountThe total amount of work, work efficiency = working time The total amount of work, work time = work efficiency6 addend addend = + andAnd a = other addend addend7 - meiosis difference = minuendMinuend - difference = meiosisPoor + = subtrahend minuend8 factor X factor = productProduct, a factor = another factor9 dividend, divisor = BusinessDividend, divisor = BusinessQuotient * divisor = divisorMathematical formulas for elementary school mathematics 1 squaresC perimeter, S area, a side length Circumference = side length * 4C=4aArea = side length * side lengthS=a * a2.V: volume a: edge lengthSurface = edge length x x x * 6S table =a x a * 6Volume = edge length x edge long x edge length V=a * a * a3 rectangleC perimeter, S area, a side length Circumference = (length + width) * 2C=2 (a+b)Area = length * widthS=ab4 cuboidV: volume s:, area a: long, b: width, h: height(1) surface area (length * width + length * height + width * height) * 2S=2 (ab+ah+bh)(2) volume = * * width * heightV=abh5 triangleS area a, bottom h highBottom area = x height / 2S=ah / 2Triangle area high = x 2 / bottomTriangle area = x 2 / high6 parallelogramS area a, bottom h highArea = base * heightS=ah7 trapezoidS area a, bottom B, bottom h highArea = (+ down on the bottom end) * / 2S= (a+b) * H / 28 roundS C - d= r= diameter, perimeter area radius(1) = =2 * * * perimeter diameter pi * radiusC= II d=2 II R(2) * * * area = radius radius9 cylinderV: volume h: high S; bottom area r:; base radius c:; bottom perimeter(1) the side area = the circumference of the bottom * high(2) surface area = side area + base area * 2(3) volume = base area * height(4) = 2 / X volume side area radius10 coneV: volume h:, high S; base area r:, bottom radius Volume = bottom area x height / 3The total, the total number of copies = average number Equation of sum and difference(+ and difference) 83019 2 = number(and poor) 83019 2 = decimalDoubling problemAnd (1 = decimal multiples).Decimal = multiple = large number(or sum = decimal = large number)Difference problem(1 / difference multiples) = decimalDecimal = multiple = large number(or decimal + difference = large number)Tree planting problem1, the problem of tree planting on non closed lines can be divided into the following three cases:If a non closed line at both ends are planting trees, so:Number = number of + 1 / 1 = length spacing* (1 = length spacing number)Full length (1 / spacing = number)If you want to plant trees in the end of non closed line, the other end is not planting, so:Number = number = length / spacingLength = x number of rows= length / number of rowsIf both ends in non closed line are not planting trees, so:Number section number = - 1 / 1 = length spacing* (number = length spacing + 1)= length / spacing (number 1)2 the number of trees on closed lines is as followsNumber = number = length / spacingLength = x number of rows= length / number of rowsProfit and loss(profit + loss), the two distribution of the difference between the number of copies in the distribution of =(large surplus - small surplus) / two distribution of the difference between the number of copies in the distribution of =(burned - a small loss of two times), the difference between the number of copies is assigned to participate in the distribution of theEncounter problemEncounter distance = speed and X meeting timeMeet time = distance / speed and meetThe speed and distance, the encounter time = meetCatch up with problemsTracking distance = speed difference * tracking timeChase and chase and distance / time = speed differenceThe speed difference and distance = chase chase and time.Flow problemDownstream velocity = hydrostatic velocity + flow velocityCountercurrent velocity = hydrostatic velocity - flow velocityHydrostatic speed = (downstream velocity and velocity), 2Flow rate = (downstream speed velocity), 2Concentration problemThe weight of the solute + the weight of the solvent = the weight of the solutionThe weight, the weight of the solute solution x 100% = concentrationWeight of solution = concentration = solute weightThe weight, concentration of solute solution = weightProfit and discount problemsProfit = selling price - costThe rate of profit, profit = cost X 100% = (sold / cost 1) * 100%Amount of fluctuation = principal * Change PercentageThe actual price discount, the original price x = 100% (< 1 discount)Interest = principal * interest rate * timeAfter tax interest rates * * * = principal time (120%)1, 100 ml (1.5 cm3) = M = ().1500 DM3 = (M3)2, a cylindrical bottom diameter is 4 cm, 10 cm high, its side area is () square centimeter, volume is () cubic centimeter.3, do some cylindrical iron pipe, how many iron sheets are required, that is, to ask for it. Asking how much water the pipe can hold is asking for it.5. Dig a cylindrical pool on the ground. The depth of the pool is 4 meters. The diameter is 6 meters. The pool covers an area of square meters and needs cubic meters of earth.6. Spread the sides of a cylinder to get a square. The radius of the bottom of this column is 2 cm, and the height of the cylinder is () cm, its volume is () cubic centimeter.Two, good referee. (10 points)1, the lateral expansion of the cylinder can get a rectangle, the length of this rectangle is equal to the circumference of the bottom of the cylinder, and the width is equal to the height of the column. ()2. A cylinder with a radius of 2 meters. Its bottom circumference is equal to its base area. ()3, the broken line statistical chart is more likely to see the relationship between the parts and the whole. ()Three. Write the serial number of the correct answer in brackets (10 points)1, such as high at the end of a cylindrical, square, rectangular volume comparison, ()A. cube cuboidB. large volume; large volume;C. cylinders are large, as big asD..2, the radius and height of the bottom of the cylinder are enlarged 3 times, and its volume enlargement is multiplesA. 3,B. 6,C. 9,D. 273, with a piece of 28.26 cm long, 15.7 cm wide rectangular iron sheet, should be equipped with a diameter () cm of circular iron sheet, you can make a volume of the largest container.A.2.5B. 4.5C. 5D. 9Four, solve the problem1, a cylindrical pool, the bottom surface radius of 3 meters, the pool height of 1.5 meters, the pool can hold up to how many tons (1 cubic meters of water weighing 1 tons)2, a cap of cylindrical metal bucket, 50 cm high, the bottom diameter of 30 cm, the bucket about too much iron? (he retained integer)3, had a 1.5 meter long cylindrical wood, sawed off 4 decimeter long after the surface area decreased by 50.24 square decimeter. What's the original volume of this piece of wood?4, the internal diameter of the water pipe is 2 centimeters, the water flow rate of the pipe is 8 centimeters per second, how many liters can the water flow in 5 minutes?6, a workshop to produce 5 radius of 0.6 meters, 20 meters high cylindrical iron pipe, and in its appearance painted antirust paint. By 0.3 kilograms per square meter with antirust paint, how many kilograms should be used with antirust paint? (retain a decimal number in one way)First, determine the problem (each question 1 points total of 5 points)1.100 tons of peanut kernels can oil 38 tons, peanut oil yield is 38% tons ().Two3. two rectangular bodies of equal length, they must be equal in length, width, heightFour5. the reciprocal of all natural numbers is less than 1. ()Two, RadioButtonList (each 1 points only a total of 5 points)One2. ask how much water a glass fish tank can hold, that is, ask for the glass fish tank [...]A. surface areaB.Volume C., volume D., material area3. Uncle Li's time to process a part has been reduced from 10 minutes to 8 minutes, and his work efficiency has been increasedA.80%B.25%C.20%D.125%FourA. is higher than B,B. is lower than B,C. is equal to B.5. a 15 book, more than B 5, B the number of more than a few percent of correct type is []?Three, fill in the blanks (2 points each day a total of 20 points)(1.) a 1 cubic decimeter cube can be placed to grow 5 wide and 3 decimeter decimeter and high cuboid 2 decimeter.2., 1.05, forming fractions are (), percentages are (), and writing amounts to ()ThreeFour5. a wire is welded into a 6 cm long, 5 cm wide and 4 cm high cuboid, if the wire is welded into a cube, the cube of the surface area is (). The volume is (?).Six7., a project, a single to do 12 days to complete, B only do 15 days to complete. A work 4 days, B work 3 days, completed the project8. dissolve 10 grams of salt in (grams) of water, so that thesalt content of the brine is 5%.NineTenFour, Jane (B. 3 points each computation. A total of 6 points)OneTwoFive, calculation (first items 2, second A. 3 3-5, each of 4 points, a total of 17 points)OneTwoThreeFourFiveSix, text title (4 points each day a total of 16 points)OneTwoThreeFourSeven, application (first items with 4 points, 5 points for each question 2-4 5-6, each of 6 points, a total of 31 points)1., Xinhua steel plant last year produced 2 million 700 thousand tons of steel, more than planned production of 300 thousand tons, the actual production of more than the plan, a few percent?2., a project, if you do alone, a team to use 12 days, B team to use 10 days, team C will use 15 days. Now a team did 3 days later, the remaining B, C, the two teams do, it still takes a few days to complete the task?3., a workshop to produce a batch of parts, 4 hours produced 40% of these parts, according to this calculation, 2.5 hours can produce 30, how many of these parts?4., a factory has two workshops, the first workshop accounted for 65% of the total number of the factory, if from the first workshop to 24 to second workshop, then the number of two workshops on the same, the original first workshop how many people?5. according to the conditions, the algorithm is calculated and the result is calculatedB two road team, a team of 4.8 km road, ________, team B repaired many kilometers?SixFirst, determine the problem (each question 1 points total of 5 points)1.100 tons of peanut kernels can oil 38 tons, peanut oil yield is 38% tons ().Two3. two rectangular bodies of equal length, they must be equal in length, width, heightFour5. the reciprocal of all natural numbers is less than 1. ()Two, RadioButtonList (each 1 points only a total of 5 points)One2. ask how much water a glass fish tank can hold, that is, ask for the glass fish tank [...]A. surface area,B. volume,C. volume,D. material area3. Uncle Li's time to process a part has been reduced from 10 minutes to 8 minutes, and his work efficiency has been increasedA.80%B.25%C.20%D.125%FourA. is higher than B,B. is lower than B,C. is equal to B.5. a 15 book, more than B 5, B the number of more than a few percent of correct type is []?Three, fill in the blanks (2 points each day a total of 20 points)(1.) a 1 cubic decimeter cube can be placed to grow 5 wide and 3 decimeter decimeter and high cuboid 2 decimeter.2., 1.05, forming fractions are (), percentages are (), and writing amounts to ()ThreeFour5. a wire is welded into a 6 cm long, 5 cm wide and 4 cm high cuboid, if the wire is welded into a cube, the cube of the surface area is (). The volume is (?).Six7., a project, a single to do 12 days to complete, B only do 15 days to complete. A work 4 days, B work 3 days, completed the project8. dissolve 10 grams of salt in (grams) of water, so that the salt content of the brine is 5%.NineTenFour, Jane (B. 3 points each computation. A total of 6 points)OneTwoFive, calculation (first items 2, second A. 3 3-5, each of 4 points, a total of 17 points)OneTwoThreeFourFiveSix, text title (4 points each day a total of 16 points)OneTwoThreeFourSeven, 4 points (first A. application questions,2-4 5 points for each item, 5-6 for each item, 6 points for 31 points1., Xinhua steel plant last year produced 2 million 700 thousand tons of steel, more than planned production of 300 thousand tons, the actual production of more than the plan, a few percent?2., a project, if you do alone, a team to use 12 days, B team to use 10 days, team C will use 15 days. Now a team did 3 days later, the remaining B, C, the two teams do, it still takes a few days to complete the task?3., a workshop to produce a batch of parts, 4 hours produced 40% of these parts, according to this calculation, 2.5 hours can produce 30, how many of these parts?4., a factory has two workshops, the first workshop accounted for 65% of the total number of the factory, if from the first workshop to 24 to second workshop, then the number of two workshops on the same, the original first workshop how many people?5. according to the conditions, the algorithm is calculated and the result is calculatedB two road team, a team of 4.8 km road, ________, team B repaired many kilometers? Reference: it can add someAnswer: cowboy001win | four | 2009-12-13 16:48Mathematics is by understanding, by your head, by the back, not by mathematics!! There are junior high school physics, do not go back, to understand!!! Answer: you Guo 12 | level |2009-12-13 20:24Mathematics is good, but the book is not necessary before examination!!!!!!!I'm a math teacher!!!!!!!!! Answer: LZ152 | level | 2009-12-14 21:00(*_*) 1 copies of each number x = totalThe total number of copies per =.The total number of copies of each number =.21 multiples * multiples = multiplesA few times, 1 times times =A few times, ratio = 1 times3 speed x time = distanceDistance / speed = timeTime = distance / speed4 unit price = quantity = total pricePrice / price = numberThe total number of 83019 = price5 work efficiency * working hours = work amountThe total amount of work, work efficiency = working time The total amount of work, work time = work efficiency6 addend addend = + andAnd a = other addend addend7 - meiosis difference = minuendMinuend - difference = meiosisPoor + = subtrahend minuend8 factor X factor = productProduct, a factor = another factor9 dividend, divisor = BusinessDividend, divisor = BusinessQuotient * divisor = divisorMathematical formulas for elementary school mathematics1 squaresC perimeter, S area, a side lengthCircumference = side length * 4C=4aArea = side length * side lengthS=a * a2.V: volume a: edge lengthSurface = edge length x x x * 6S table =a x a * 6Volume = edge length x edge long x edge lengthV=a * a * a3 rectangleC perimeter, S area, a side lengthCircumference = (length + width) * 2C=2 (a+b)Area = length * widthS=ab4 cuboidV: volume s:, area a: long, b: width, h: height(1) surface area (length * width + length * height + width * height) * 2S=2 (ab+ah+bh)(2) volume = * * width * heightV=abh5 triangleS area a, bottom h highBottom area = x height / 2S=ah / 2Triangle area high = x 2 / bottomTriangle area = x 2 / high6 parallelogramS area a, bottom h highArea = base * heightS=ah7 trapezoidS area a, bottom B, bottom h highArea = (+ down on the bottom end) * / 2S= (a+b) * H / 28 roundS C - d= r= diameter, perimeter area radius (1) = =2 * * * perimeter diameter pi * radius C= II d=2 II R(2) * * * area = radius radius9 cylinderV: volume h: high S; bottom area r:; base radius c:; bottom perimeter(1) the side area = the circumference of the bottom * high(2) surface area = side area + base area * 2(3) volume = base area * height(4) = 2 / X volume side area radius10 coneV: volume h:, high S; base area r:, bottom radiusVolume = bottom area x height / 3The total, the total number of copies = average numberEquation of sum and difference(+ and difference) 83019 2 = number(and poor) 83019 2 = decimalDoubling problemAnd (1 = decimal multiples).Decimal = multiple = large number(or sum = decimal = large number)Difference problem(1 / difference multiples) = decimalDecimal = multiple = large number(or decimal + difference = large number)Tree planting problem1, the problem of tree planting on non closed lines can be divided into the following three cases:If a non closed line at both ends are planting trees, so:Number = number of + 1 / 1 = length spacing* (1 = length spacing number)Full length (1 / spacing = number)If you want to plant trees in the end of non closed line, the other end is not planting, so:Number = number = length / spacingLength = x number of rows= length / number of rowsIf both ends in non closed line are not planting trees, so:Number section number = - 1 / 1 = length spacing* (number = length spacing + 1)= length / spacing (number 1)2 the number of trees on closed lines is as followsNumber = number = length / spacingLength = x number of rows= length / number of rowsProfit and loss(profit + loss), the two distribution of the difference between the number of copies in the distribution of =(large surplus - small surplus) / two distribution of the difference between the number of copies in the distribution of =(burned - a small loss of two times), the difference between the number of copies is assigned to participate in thedistribution of theEncounter problemEncounter distance = speed and X meeting timeMeet time = distance / speed and meetThe speed and distance, the encounter time = meetCatch up with problemsTracking distance = speed difference * tracking timeChase and chase and distance / time = speed differenceThe speed difference and distance = chase chase and time. Flow problemDownstream velocity = hydrostatic velocity + flow velocity Countercurrent velocity = hydrostatic velocity - flow velocity Hydrostatic speed = (downstream velocity and velocity), 2 Flow rate = (downstream speed velocity), 2Concentration problemThe weight of the solute + the weight of the solvent = the weightof the solutionThe weight, the weight of the solute solution x 100% = concentrationWeight of solution = concentration = solute weightThe weight, concentration of solute solution = weightProfit and discount problemsProfit = selling price - costThe rate of profit, profit = cost X 100% = (sold / cost 1) * 100%Amount of fluctuation = principal * Change PercentageThe actual price discount, the original price x = 100% (< 1 discount)Interest = principal * interest rate * timeAfter tax interest rates * * * = principal time (120%) answer: 71774614 | two | 2009-12-18 17:35Relevant content2011-1-6 PEP on the sixth grade math final review key and difficult point 42011-4-2 where did someone teach the final revision papers for grade six in primary school mathematics? Two2011-1-25 document: PEP primary school mathematics review lesson on the sixth grade2008-6-18 who can give me a primary school math PEP edition, grade six final review material 47?2009-8-2 primary school teaching mathematics knowledge points on the sixth grade 137More questions about the knowledge of the final revision of mathematics in grade sixSee the same subject: PEP, elementary school, math, grade sixWaiting for you to answer 0 answer 5 where Jiangsu GB the fourth grade mathematics teaching and the teaching postscript 0 answer 5 my notebook is ASUS, a work plan will continue to switch power supply mode of vibration, to answer what is the 5 1... Its bonus system? 0 answer 10 jijiaoban mathematics lesson of a practice on the sixth grade two unit ratio and the proportion of 2.3thanExample (Ninth pages) basis: 2 answer why Yunnan primary and secondary school teacher education technology ability training website studio can not enter? 0 answer 10, ask for advanced mathematics two teaching video, it is better to publish from Tongji University, from the first chapter to the last one...1 answer 5 students moderator speechWork plan 0 answer 15, who has employee training system to one, thank you! "More questions waiting for you to answer" is forwarded to: username:Cipher code:Remember my login statusLogin forgot passwordRegister Baidu account, surf the knowledge oceanBaidu to promote primary educationThe use of Baidu Hi, you can receive the first time "questions, new answers", "answer was adopted" "net friend for help" notice. View detailsWould you like to display your questions and answers on Baidu's "know" on your website? 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