2009-20 10 Academic Year, the first semester self-study exam questions Dear students, in a blink of an eye, the semester has passed halfway, and you must have learned a lot. Here the teacher provides you with an opportunity to show your intelligence. I hope you can answer the questions seriously. Let's share your success! 1. Fill in the blanks (this big question is a small question of * * 10, with 2 points for each small question and 20 points for * *). 14 of 1.60 is (), and () of 14 is 120. More than 64 tons, 38 is () tons. 2. The ratio of A to B is 3: 5, so A is B's () (), and B is the sum of A and B. () () Boys in Grade Two account for 87 of girls, so boys have () () 3.2 hours more than girls = () hours = () hectares = () square meters. 4. A barrel of oil weighs 32kg, and is made of. If we use more kilograms, there are still () kilograms. 5. Use (6,3) on the square to indicate where Xiao Ming is standing, so Xiao Ming is at the 6th () and 3rd (). The reciprocal of 54 is () 19 and the reciprocal of 54 is () 6. A semicircle with a diameter of 10 decimeter and a circumference of () decimeter. Cut out the largest circle on a square piece of paper with a circumference of 80 cm, and the circumference of this circle is () cm. 7.():30 = = 15 ÷ () = () Fill in the decimal 8. The pear with () × 67 = 8 × () = 34÷ () =16+() =19.35 is an apple. The simplest integer ratio to change 5 1: 1.7 is (). (This big question ***6 small questions, ***6 points) 1 1. The ratio of the circumference and diameter of a big circle is equal to the ratio of the circumference and diameter of a small circle. () 12. If the number of A is greater than that of B, the number of B is less than that of A. () 13. The two items before and after the ratio are multiplied or divided by non-zero numbers at the same time, and the ratio remains unchanged. () 14. Divided by a true fraction, the quotient is greater than. () 15. if A: B = 4: 5, then A=4, then B=5() 16. There are more pine trees than cypress trees, so cypress trees are less than pine trees () 3. Multiple-choice question (this big question **4 small questions, * * 4 points) 65433. A, acute triangle b, obtuse triangle c, right triangle 18. If the number of A is equal to the number of B, then the number of A () is the number of B. A, greater than B and less than C, is equal to 19. If the number of A is 60, then the number of A is (). a，75B， 1200C，4820。 A bag of chocolate candy, if you eat it and then increase the remaining mass, now the mass of this bag of candy is the original mass of () chocolate candy. A, greater than B, less than C, equals 4. Calculation problem. (This big question ***3 small questions, 2 1 4 points, 22 questions 9 points, 23 questions 15 points, ***28 points) 2 1. Write the number directly. 17× 351=13+512 = 613× 52 =13 = 913 ÷. Fill in the color according to the formula, and then calculate. 23× 45 = () () × 3 = () () 25. Use the number pair 26 to represent the rectangle in the figure. How many symmetry axes can you draw from the following figure? Please draw the positions of the four vertices. (This big question is ***8 small questions, of which the 28th small question has 3 points, and the rest have 4 points for each small question. ***28. The road maintenance team built 2,600 meters of roads this year, less than last year 15. How many meters were built last year? 29. A cup of 200ml fresh milk contains about 18g of calcium, accounting for 13 of the calcium needed by an adult. How much calcium does an adult need a day? 30. Make a rectangular frame with 240 cm metal wire. The ratio of length to width to height is 3: 2: 1. How much water can this cuboid hold? 3 1. The radius of the circular conference table is 2m. If one person needs a seat with a width of 0.4m, how many people can sit at this conference table? 32. The price of cabbage in 45 yuan is 23 of that of eggplant, and the price of radish is 34 of that of eggplant. What is the price of radish? 33. Teacher Li typed 1600 words in a paper, which is exactly the full text. How many words have not been typed? 34. A bag of rice was eaten 1400g the next day, which was 200g more on the first day. How many grams did you eat on the first day?