The answers to the fifth grade mental arithmetic questions in primary school mathematics volume 1
Here are some examples of the 5th grade math questions and answers: 0.27÷3 = 0.09; 6.4÷5 = 1.28; 1.25×0.8×0.4 = 0.4; 0.78÷6 = 0.13; 0.2÷2 = 0.1; 2.5×7.7×0.8 = 15.4; 0.18÷0.2 = 0.9; 9.9÷2 = 4.95; 2.6×3 = 7.8; 7.2÷0.2 = 36; 2.4÷8 = 0.3; 0.25×0.73×8 = 1.46; 0.48÷4 = 0.12; 2.5÷2 = 1.25; 0.8×0.9 = 0.72; 0.8×5 = 4; 0.8×7 = 5.6; 0.44×0.5 = 0.22; 4.2÷0.7 = 6; 0.5×1.5 = 0.75; 6.4÷4 = 1.6; 1.2×0.5 = 0.6; 0.28×1 = 0.28; 2.4÷4 = 0.6; 0.7×1 = 0.7; 1.3÷5 = 0.26; 1.6×0.6 = 0.96; 2.3×3 = 6.9; 0.68×1 = 0.68; 0.6÷4 = 0.15; 0.8×2 = 1.6; 0.5×4 = 2; 9.2÷4 = 2.3; 1.25×0.8 = 1; 0.3÷6 = 0.05; 5.6÷4 = 1.4; 0.8×0.5 = 0.4; 0.2×1 = 0.2; 0.39÷0.3 = 1.3; 2.5×1.2 = 3; 2.5×3×0.4 = 3; 2.8÷5 = 0.56; 5.4÷5 = 1.08; 1.2÷0.2 = 6; 0.9×2 = 1.8; 1.6×2 = 3.2; 0.32×3 = 0.96; 0.2×5 = 1; 1.25×2.8×4 = 14; 0.44×2 = 0.88; 8.1÷5 = 1.62; 12.5×0.66×8 = 66; 0.3÷0.4 = 0.75; 1.95×0.2 = 0.39; 0.8×4 = 3.2; 7.9÷5 = 1.58; 12.5×8.8×0.08 = 8.8。 Read more exciting novels for free
Primary school fourth grade key mathematics questions and answers
The following are some of the key math questions and answer types in the first volume of the fourth grade: ** I. Type of application questions ** 1. ** Problem on operational relationships ** - [Question: Xiao Ming has 25 candies. Xiao Hong has 3 times more candies than Xiao Ming. How many candies does Xiao Hong have?] - [Answer: First calculate the number of Little Red's candies by three times, which is 25×3 = 75 candies. Adding the extra 5 candies, 75+5 = 80 candies, so Little Red has 80 candies.] 2. ** About how to convert units in application questions ** - [Question: The capacity of a water tank is 500 liters, and 5000 milliliters of water can be used every day. How many days can this water be used?] - Answer: First, convert the units. Since 1 liter = 1000 milliliters, 500 liters = 500×1000 = 500000 milliliters. Divide the total amount of water by the daily water consumption. 500,000/5,000 = 100 days. ** 2. Type of fill-in-the-blank question ** 1. ** Digital related ** - Title: The million digits of a number are 7, the ten thousand digits are 3, the thousand digits are 9, and the remaining digits are 0. This number is written as (). - Answer: 7039000. 2. ** Calculating rules ** - [Question: According to the distribution law of multiplication, 25×(40 + 4)=25×40+() ×4.] - Answer: 25. ** 3. The key questions and error-prone questions in the calculation questions ** 1. ** Four Mixed Operations ** - Title: 360 × (72 - 6×12) - Answer: First calculate the multiplication 6×12 = 72 in the parenthesis, then calculate the substitution 72 - 72 = 0 in the parenthesis. Because the division number cannot be 0, this question is meaningless. 2. ** Simple calculation ** - Title: 25×32×125 - The answer was to split 32 into 4×8, and the original formula became (25×4)×(8×125)=100×1000 = 100000. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Fourth grade primary school mathematics Olympiad questions and answers
The following are some of the fourth grade primary school math Olympiad questions and answers: 1. ** and times problem **: The quotient of two numbers is four, the remainder is two, and the sum of the two numbers is forty-two. Find these two numbers. - If the smaller number is x, and the quotient of the larger number divided by the smaller number is 4 and the remainder is 2, then the larger number is x. The sum of the two numbers is 42, which gives the equations: x+(4x + 2)=42, 5x+2 = 42, 5x=40. The solution is x = 8, and the larger number is 44. 2. ** Divide with known dividends, quotient, and remainder **: Divider is 3320, quotient is 150, remainder is 20. - According to the formula, we can get the result: <<(3320 - 20)> div150 = 22>. 3. ** Successive natural number sum problem **: 3998 is the sum of four consecutive natural numbers, find the smallest number. - Let the smallest number be {x}, then the other three numbers are {x + 1},{x+2}, and {x + 3}, which gives the equation {x+(x + 1)+(x+2)+(x + 3)=3998},{4x+6 = 3998}, and {4x=3992}. The solution is {x = 998}. 4. ** Number and Decimals Adding Problem **: There is a two-digit number. Add a decimals point in front of one of its digits and add it to the two-digit number. The result is 20.9. Find the two-digit number. - Let this two-digit number be <x>, because the result after adding is <20.9>, we can know that this decimal is <0.1x>, then <x+0.1x = 20.9>,<1.1x = 20.9>, the solution is <x = 19>. 5. ** Family age problem **: A family of three, the total age of the three is 72 years old, mother and father are the same age, mother's age is four times that of the child, please age the three. - If the child's age is considered as a multiple of 1, and the parents are four times the child's age, then the child's age is <72'> div4>(1 + 4+4)=8>, and the mother and father's age is <8'> time4>= 32>. 6. ** Sports allocation problem **: A, B, C and D will participate in basketball, volleyball, football and chess respectively. It was known that A was taller than a volleyball player, that D had lost his legs in an accident a few years ago, and that a soccer player was shorter than C and a basketball player. Ask A, B, C and D to participate in what event. - From the fact that Ding lost his legs, he could tell that Ding was a chess player; A was not a volleyball or football player, so A was a basketball player; C was not a football player, so C was a volleyball player; B was a football player. 7. [Fruit packing problem: 10 fruits must be packed in 6 bags. The number of fruits in each bag must be even, and there must be no fruit or bags left.] - He put two bags in each bag and five bags in the last bag. 8. ** Comparing the amount of money left after spending money **: Naughty had 300 yuan, 56 yuan for books, and 128 yuan for stationery. How much less was Naughty left than before? - The money that was less than the original amount was the money spent. The total amount spent was [56+128 = 184] yuan. 9. [Question of the number of fishes: The two brothers went fishing and caught a total of 23 fishes. The elder brother caught three times more fish than the younger brother. How many fishes did the elder brother and younger brother catch?] - First, calculate the number of fish the younger brother has caught. The number of fish the older brother has caught is [(23 - 3)][Div(3 + 1)][5][1][2][3][3] 10. ** Alien payment problem **: Aliens have 1 cent, 2 cent, 4 cent, and 8 cent coins each. Please pay for 7 cent, 9 cent, 10 cent, 13 cent, 14 cent, and 15 cent items. - \(7 = 1+2+4\)，\(9 = 1+8\)，\(10 = 2+8\)，\(13 = 1+4+8\)，\(14 = 2+4+8\)，\(15 = 1+2+4+8\)。 11. [Fruit distribution problem: There are bananas, apples, and oranges on the plate.] Xiao Gang, Xiao Lin, and Xiao Hong each took a different fruit. "Everyone can only eat one kind of fruit. I don't eat oranges," said Xiao Gang. "I don't eat apples or oranges," said Xiao Lin. Beg who to take what fruit. - Xiao Lin took the bananas, Xiao Hong took the oranges, and Xiao Gang took the apples. 12. ** Four-digit numbers and questions **: Which four-digit numbers have the sum of each number equal to 34? - There were 8899, 8989, 8998, 9889, 9898, 9988, 7999, 9799, 9979, and 9997. 13. ** Price of tables and chairs **: Given that the price of a table is 10 times that of a chair, and knowing that a table is 288 yuan more than a chair, please find the price of a table and a chair. - The price of a chair was $288,000, and the price of a table was $32,000. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The compulsory questions and answers of the sixth grade mathematics competition in primary school
The following are some examples of the types of questions and answers that may be involved in the sixth grade mathematics competition: ##1. Calculation Class 1. [Question: Calculating 1.25×17.6 + 36.1 × 0.8+2.63×12.5] - Answer: - First of all, the equation can be transformed into: 1.25×17.6+36.1 × 1 = 1.25×17.6 + 36.1× 1 = 26.3 × 1.25. - It was further converted to: 1.25×17.6+45.125 + 26.3×1.25. - Using the distribution law of multiplication: 1.25×(17.6 + 26.3)+45.125. - First, calculate the value in the parenthesis: 1.25×43.9+45.125. - Multiplication: 54.875+45.125 = 100. 2. [Question: Calculating 7.5×2.3+1.9×2.5] - Answer: - Splitting 7.5 into 2.5×3, the equation becomes 2.5×3×2.3+1.9×2.5. - That is, 2.5×(3×2.3)+1.9 × 2.5 = 2.5×6.9+1.9×2.5. - Then, using the distribution law of multiplication: 2.5×(6.9 + 1.9)=2.5×8.8 = 22. ##2. Integer-Based Operations 1. [Question: Calculating 1999+999×999] - Answer: - Divide 1999 into 1000+999, and the formula becomes 1000+999+999×999. - Extracting the common factor 999, you get: 1000+999×(1 + 999). - First, calculate in the parenthesis: 1000+999×1000. - After extracting the common factor 1000, it was 1000×(1+999)=1000×1000 = 1000000. 2. [Question **: Calculating 8+98+998+ 9998 + 9998+99998] - Answer: - Rounding up each number, the original formula =(10 - 2)+(100 - 2)+(1000 - 2)+(10000 - 2)+(100000 - 2). - Removing the parenthesis, it was 10+100+ 1000 + 10000+100000-2×5. - The result was: 111110 - 10 = 111100. ##Three and Four Mixed Operations 1. [Question: Calculating (78.6 - 0.786×25+75%×21.4)/15×1997] - Answer: - First, calculate the formula in the parenthesis. 0.75 = 75%, then the formula becomes: (78.6-0.786×25 + 0.75×21.4)/15×1997. - Distortion of the formula in the parenthesis: 78.6×(1 - 0.25)+21.4 × 0.75 × 15×1997. - That is,(78.6×0.75+21.4×0.75) × 15×1997. - Using the law of multiplication: (78.6 + 21.4)×0.75 div15 ×1997. - First, calculate in the parenthesis: 100×0.75 × 15×1997. - According to the order of calculation: 75 div15 ×1997 = 5×1997 = 9985. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Elementary school fifth grade first volume oral arithmetic questions 100 multiplication
The following are 100 multiplication questions in the first volume of the fifth grade: 1. 2 x 1 = 2. 4 x 2 = 3. 3 x 3 = 4. 5 x 4 = 5. 6 x 2 = 6. 7 x 1 = 7. 9 x 9 = 8. 8 x 7 = 9. 2 x 7 = 10. 5 x 3 = 11. 6 x 4 = 12. 7 x 6 = 13. 3 x 8 = 14. 9 x 7 = 15. 1 x 9 = 16. 4 x 3 = 17. 2 x 9 = 18. 5 x 6 = 19. 3 x 4 = 20. 8 x 3 = 21. 3 x 1 = 22. 5 x 2 = 23. 7 x 3 = 24. 6 x 3 = 25. 4 x 4 = 26. 9 x 2 = 27. 8 x 2 = 28. 2 x 8 = 29. 5 x 5 = 30. 7 x 4 = 31. 3 x 5 = 32. 6 x 5 = 33. 4 x 5 = 34. 9 x 3 = 35. 8 x 4 = 36. 2 x 3 = 37. 7 x 5 = 38. 3 x 6 = 39. 6 x 6 = 40. 4 x 6 = 41. 9 x 4 = 42. 8 x 5 = 43. 2 x 4 = 44. 7 x 7 = 45. 3 x 7 = 46. 6 x 7 = 47. 4 x 7 = 48. 9 x 5 = 49. 8 x 6 = 50. 2 x 5 = 51. 7 x 8 = 52. 3 x 8 = 53. 6 x 8 = 54. 4 x 8 = 55. 9 x 6 = 56. 8 x 8 = 57. 2 x 6 = 58. 7 x 9 = 59. 3 x 9 = 60. 6 x 9 = 61. 4 x 9 = 62. 9 x 8 = 63. 8 x 9 = 64. 5 x 1 = 65. 7 x 2 = 66. 1 x 8 = 67. 6 x 1 = 68. 5 x 8 = 69. 9 x 1 = 70. 4 x 1 = 71. 3 x 2 = 72. 2 x 2 = 73. 8 x 1 = 74. 7 x 3 = 75. 5 x 7 = 76. 1 x 7 = 77. 6 x 5 = 78. 4 x 3 = 79. 9 x 7 = 80. 8 x 2 = 81. 2 x 9 = 82. 7 x 4 = 83. 5 x 3 = 84. 1 x 6 = 85. 6 x 3 = 86. 4 x 2 = 87. 9 x 3 = 88. 8 x 3 = 89. 2 x 8 = 90. 7 x 5 = 91. 5 x 4 = 92. 1 x 5 = 93. 6 x 4 = 94. 4 x 4 = 95. 9 x 4 = 96. 8 x 4 = 97. 2 x 7 = 98. 7 x 6 = 99. 5 x 6 = 100. 1 x 4 = <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Zhifu District primary school fifth grade mathematics examination questions
The reference materials only provided a label for the final mathematics test paper of the fifth grade in the 2023 - 2024 school year in Zhifu District, Shandong Province. The specific content of the questions was not shown, so it was impossible to give the exact content of the mathematics test questions of the fifth grade primary school in Zhifu District. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
First grade mathematics, solving equations, mental arithmetic
The following are some ideas and examples of solving equations in the first grade of primary school: ** 1. Simple addition equation ** 1. For the equation x + 3 = 5 - [In addition, one addend equals the sum minus another addend.] Here, x is an addend, so x = 5 - 3. - The result of the mental calculation: 2. The equation (2 + x = 7) - [Thinking: According to the above relationship, x = 7 - 2] - The result of the mental calculation: ** 2. Simple Subtraction Formula ** 1. equation (x - 1 = 3) - The idea was: In a multiplication formula, the minuend is equal to the difference plus the subtrahend. Here,<x> is the minuend, so <x = 3+1>. - The result of the mental calculation: 2. equation (5 - x = 2) - The idea is: Subtracement is equal to the minuend minus the difference. Here, x is the reduction, so x = 5 - 2. - The result of the mental calculation: ** 3. Simple multiplication equation (Most first-year students use simple integral multiplication)** 1. equation (2x = 6) - [Description: In a multiplication formula, a factor is equal to the product divided by another factor. Here, x is a factor, so x = 6 div2.] - The result of the mental calculation: 2. equation (3x = 9) - [Thinking: The same logic, x = 9 div3] - The result of the mental calculation: ** 4. Simple division equation ** 1. The equation is x = 3. - [Description: In a division equation, the quotient is the quotient multiplied by the quotient. Here, x is the quotient, so x = 3×2.] - The result of the mental calculation: 2. The equation {6 × x = 2} - The idea is: Divisor is equal to the quotient divided by the dividends, where x is the division, so x = 6 div2. - The result of the mental calculation: <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
10 Mathematics application questions in the fourth grade of primary school
1. A car traveled 180 kilometers in three hours. At this speed, how many kilometers could it travel in five hours? 2. The school purchased stationery at two yuan per pencil and five yuan per notebook. How much did he spend on 10 pens and 8 notebooks? 3. A rectangular flower bed was 12 meters long and 8 meters wide. How many meters was the circumference of this flower bed? 4. Xiao Ming had 120 candies. He wanted to distribute them equally among 30 children. How many candies could each child get? 5. There were 50 apple trees in the orchard. The number of pear trees was three times that of the apple trees. How many pear trees were there? 6. The worker uncle wants to build a 500-meter-long road. He has already built 200 meters. The rest needs to be completed in 5 days. How many meters do you need to build on average every day? 7. A barrel of oil weighed 100kg, and 40kg was used. The remaining oil was stored in 5 bottles. How many kilograms was stored in each bottle? 8. There were 300 chickens in the farm, and the number of ducks was 50 fewer than the chickens. How many ducks were there? 9. An engineering team could repair 80 meters of road every day. How many days would it take to repair a 640-meter-long road? 10. A book had a total of 240 pages. Xiaoming read 15 pages a day. After reading for 10 days, how many pages were left? <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Mathematics questions in the third grade textbook of primary school
The following are some of the possible types of math problems that might be covered in a third grade elementary school textbook: ** 1. Division related ** 1. ** Rules of division by pen ** - When dividing a two-three-digit number by a single-digit number, one had to start dividing from the highest digit of the dividends. If one digit was not enough, one had to look at the two digits. The quotient of the digit that was divided would be written on top of the digit, and the remaining number would be smaller than the dividends each time. For example, when calculating 338 divided by 3, first look at the highest digit 3, divide it by 100, and write the quotient 1 on the 100 digits to get 112, and the remainder is 2. 2. ** Meaning and application of division ** - The basic meaning of division was the average score. If the school wanted to divide the 338 exercise books evenly among the three classes, it would need to use 338 divided by 3 to calculate the number of books each class got and the number of remaining books. 3. ** Easy to make mistakes ** - It was easy to write the quotient in the wrong place. Many students didn't know which place to divide and put the quotient in. In addition, it was easy to make mistakes when calculating the unit of division. For example, when calculating the multiple relationship, the "multiple" did not need to have a unit. ** 2. Multiplication (multiplication may appear in textbook exercises)** 1. ** Multiplication in Life ** - For example, to calculate the total cost of 21 thermos bottles at 23 yuan each, one would need to multiply them, which was 21×23. 2. ** Combination of multiplication and other operations ** - For example, in some comprehensive questions, the total amount might be calculated according to the multiplication, and then the division, average score, or other operations. For example, Uncle Wang had shipped the harvested apples to other places. He had already filled 15 carts with 28 boxes per cart. There were 16 boxes left. How many boxes of apples had he harvested in total? First, he multiplied the 15 cars to 15 x 28 = 420 boxes. Adding the remaining 16 boxes, he got a total of 436 boxes. ** 3. Adding and Subtracting ** 1. ** Adding and Subtracting in Time Calculation ** - For example, a train that was supposed to arrive at 9:15 was now 25 minutes late. To find the arrival time, one needed to add up. 9:15 + 25 = 9:40. 2. ** The application of addition and substitution of ordinary numbers in practical problems ** - For example, in the first half of last year (January to June), Li Yangyang's family paid 168 yuan for water, and in the second half of the year (July to December), they paid an average of 24 yuan per month for water. To find out how much water they paid last year, they needed to first calculate the water fee paid in the second half of the year, 24×6 = 144 yuan, and then use the addition to calculate the water fee for the whole year, 168+144 = 312 yuan. To find out how much the average monthly water bill saved in the second half of the year compared to the first half of the year, first calculate the average monthly water bill in the first half of the year: 168/6 = 28 yuan, then subtract 28 - 24 = 4 yuan. ** 4. Estimated related ** 1. ** Weight estimation ** - For example, Uncle Zhang's ginger harvest was packed in the same big bag. There were a total of 42 bags. He weighed four of the bags and the results were 28kg, 31kg, 29kg, and 33kg respectively. He estimated the total amount of ginger he harvested. One could first calculate the average weight of these four bags (28+31+29+33) div4 =(59 + 62) div4 = 121 div4 = 30 kg, and then estimate the total weight to be 30×42 = 1260 kg. 2. ** Estimated quantity ** - For example, Zhouzhuang Village organized 272 villagers to go on a trip. Each bus had 48 seats. It was estimated that renting 5 such buses was not enough. If 48 was estimated to be 50, 50×5 = 250 people, 250<272, so it was not enough. At least 6 buses had to be rented. ** 5. Comprehensive type of application questions ** 1. ** Multiple operations combined ** - For example, the school bought 81 floor tiles to build a laboratory and paid 4000 yuan. There were three types of floor tiles to choose from: 42 yuan, 49 yuan, and 58 yuan. First, estimate what kind of floor tiles it might be. 42×81 = 40×80 = 3200 yuan, 49×81 = 50×80 = 4000 yuan, 58×81 = 60×80 = 4800 yuan, so it might be 49 yuan per floor tile. Then, he calculated 49×81 = 3969 yuan, and he should get back 4000 - 3969 = 31 yuan. 2. ** Write the formula according to the meaning of the question ** - For example, Xiao Li borrowed a book from the library,"Space Adventures", a total of 132 pages. After reading it for 5 days, there were still 72 pages left. To find the average number of pages read per day, first calculate the number of pages read in 5 days, 132 - 72 = 60 pages, then divide by 5 to get an average of 60/5 = 12 pages per day. If you can only borrow it for 9 days, from the 6th day onwards, you have to read an average of 72/(9 - 5)=72/4 = 18 pages per day. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reading questions and answers in the sixth grade of primary school
The following are some of the reading questions and answers for the first volume of the sixth grade: ** 1. Prairie related reading questions and answers ** 1. ** Source and Author **: This passage was taken from Lao She's Prairie. 2. [The characteristics of the grassland and the sentences that reflect it]: The characteristics of the grassland are written. The sentence that best highlights this characteristic is: "In the world, a thousand miles of green is not boundless." There are hills on all sides. The flat ground is green, and the hills are also green." 3. ** Sentence type and reference content **: draw " "was a metaphor. In the sentence," boundless green carpet "referred to the grassland, and" white flowers "referred to the sheep. 4. ** Sentences and benefits of directly writing about scenery and feelings **: Sentences that directly write about grassland scenery are like,"The sky there is lovelier than anywhere else, the air is so fresh, the sky is so bright, in the world, a thousand miles of green, but not boundless." There were hills on all sides. The flat ground was green, and so were the hills. The lines of those hills were so soft and beautiful, just like a China painting that was only rendered with green and not drawn with ink lines. The green color flowed everywhere and gently flowed into the clouds. The writer felt that this realm was both amazing and comfortable. He was willing to stand and look around for a long time, but also wanted to sit down and recite a beautiful poem. In this realm, even horses and bulls would sometimes stand still, as if they were savoring the endless pleasures of the grasslands. The advantage of integrating feelings into the writing of scenery was that the article would blend the feelings and scenes, allowing the readers to better understand the beauty of the grassland scenery and the author's love for the grassland. ** 2. Reading questions and answers related to Five Heroes of Langya Mountain ** 1. [Correct choice of words: Five warriors (standing) at the peak of the mountain,(looking) in the direction where the crowd and the main force of the army were going.] The class monitor, Ma Baoyu, said excitedly. At first it was the whole audience (silence), Mao Tse-tung (reading out) the announcement of the Central People's Government amidst waves of applause from the crowd, and the love of the 300,000 people for their leader melted into a burst of (enthusiastic) cheers. 2. ** Meaning of the words **: In the text,"earth-shattering" is a word that represents a loud voice, and "magnificent mountains and rivers" wrote the bravery and fearlessness of the five heroes. 3. ** Subtitle summary **: Heroic jump off a cliff. 4. The five heroes may think that we have successfully completed the task of covering the transfer of the masses and the main force of the army. Even if we sacrifice ourselves, it is worth it. We will never be captives of the enemy. We will use our lives to defend the dignity of the motherland and the people. ** 3. Reading questions and answers related to raising the flag for the founding of New China ** 1. ** The source of the article is not explicitly mentioned **. 2. At first, it was the whole audience (silence). Mao Ze Dong (read) the announcement of the Central People's Government in the applause of the crowd. The feelings of the 300,000 people who loved the leader melted into a burst of (warm) cheers. 3. ** Metaphorical sentence and body metaphor **: In the article,"At first, the whole audience was silent. Only the sound of cannons, the national flag, and many other flags could be heard. Later, every time the cannons were fired, the audience would burst into thunderous applause." It was a metaphor that compared applause to thunder. 4. ** Dash Effect **:"New China's first national flag, the five-star red flag, is slowly rising." The dash in this sentence was used by A. to explain the part of the text. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The answers to the additional questions in the third grade of primary school
The following are some of the types of additional questions and answers for the third grade of primary school: 1. There were two ropes, one twenty-eight meters long and the other twenty-four meters long. They had to be cut into small pieces of the same length, and there was no surplus. Each piece was at most four meters long, so they could be cut into thirteen pieces in total. (Find the longest length of each segment by finding the greatest common factor of 28 and 24, and then calculate the total number of segments) 2. When Xiaoming was calculating a division formula, he took 6 as 9, and the quotient he got was 4. The correct quotient should be 6. (First calculate the dividends based on the wrong quotient and quotient, then calculate the correct quotient) 3. There were 25 apple trees in the orchard, 8 more pear trees than apple trees, and 116 peach trees. (First calculate the number of pear trees, then the total number of apple trees and pear trees, and finally the number of peach trees) 4. Xiao Ming read half of the story book on the first day and the other half on the second day. There were still 20 pages left. The book had a total of 80 pages. (Inferring from the back to the front, the number of pages in the book is obtained) 5. Two 8cm long and 4cm wide rectangular shapes were put together to form a square. The circumference of this square was 32cm. (First determine the length of the side of the square, then calculate the perimeter) 6. The students lined up to do the exercises. There were the same number of people in each row. Xiao Ming was the fourth from the left, the third from the right, the fifth from the front, and the sixth from the back. There were a total of 60 students doing the exercises. (First calculate the number of people in each row and column, then find the total number of people) 7. A barrel of oil weighed 90 kilograms. After pouring out half of the oil, the barrel weighed 50 kilograms. The original barrel had 80 kilograms of oil and weighed 10 kilograms. (First calculate half of the oil weight, then get the oil weight and barrel weight) 8. A rectangular shape was three times as long as it was wide and had a circumference of 48 centimeters. This rectangular shape was 18 centimeters long and 6 centimeters wide. (Let the width be an unknown number and solve it according to the circumference formula) <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>