The name score of the sixth grade mathematics midterm test paper in the central school class of Gucheng town 1. Fill in the blanks. (per grid 1 minute, ***20 points) 1. Above zero 10℃ can be recorded as ()℃, and below 0℃5℃ can be recorded as ()℃; On March 18, the temperature in our city was -7℃ ~ 3℃. The temperature difference of this day is () degrees Celsius. 2. In a proportion, two external terms are reciprocal, one of which is an internal term and the other is (). 3. It is the scale of (), and the scale is (). 4. The scale of precision parts drawing is 5∶ 1. On this drawing, the measured length of the part is 40mm, and the actual length of the part is (). 5. The cylinder is () high and the cone is () high. 6.0.4=( )%= () Fold = () into 7. Cylinders and cones are equal in height. It is known that the volume of the cylinder is 8 cubic decimeters larger than that of the cone, so the volume of the cylinder is () and the volume of the cone is (). 8. There is a cylinder with a bottom radius of 3 cm and a height of 7 cm. Its side area is (), its surface area is () and its volume is (). 9, a cone parts bottom radius of 2 cm, height of 6 cm, its volume is (). 10, the area of parallelogram is fixed, and its base is proportional to its height (); The sixth grade students have a broadcast gymnastics competition in a queue formation, and the number of stations in each row is directly proportional to the number of rows. Second, the judgment question. (Draw "√" correctly and "×" incorrectly) (5 points) 1, in a straight line, -5 is to the left of -6. () 2. The volume of a cylinder is constant, and its bottom area is inversely proportional to its height. () 3. If 8A = 9B, then b: a = 8: 9 () 4. The volume ratio of cylinder to cone is 3: 1. () 5, 1 is neither positive nor negative. () Third, multiple-choice questions. (Fill in the serial number of the correct answer in brackets) (5 points) 1. The temperature on the thermometer was 5℃, and then it dropped by 8℃. At this time, the temperature is ()℃. A. 13b.3c.-3d。 -132, lateral area of two cylinders is equal, and their () must be equal, product of a, volume, b, bottom perimeter, c, bottom perimeter, height 3. The following four statements about direct ratio and inverse ratio are wrong (). (1) a proportional image is a ray that extends infinitely from (0,0); ② A person's age and weight are neither directly proportional nor inversely proportional; ③ The bottom area of the cylinder is constant, and the volume is inversely proportional to the height; ④ The distance is fixed, and the distance traveled is not proportional to the rest. A.① B.② C.③ D.④ 4。 A certain brand notebook of Little Doctor Stationery is "buy four and get one free". A. 1 discount B.4, C.75, D.20 and 5. Knead a cylindrical plasticine into a cone with the same bottom, and enlarge it by () ①3 times? ② 3 times reduction; Enlarge 6 times; Reduce by 6 times; 4. Pay attention to the examination and careful calculation. 1, write directly. (9 points)1-+=1÷× = 0.5-+0.5-= 8.1+= (+) × 24 = 3 ÷× 3 ÷ = 9-0.9 = 72 (12 points) 0.1χ+60% χ = 28 x-=+x = = 8: 30 = 24: x: = x: 3, how to calculate it simply. (10) () 5. Observation and practice. (*** 10) 1. Find the surface area. (5 points) 2. Find the volume. (Unit: cm)(5 points) Sixth, connect with reality and solve problems. (***29 points) 1. One of Uncle Wang's farmland planted peanuts last year, with an output of 1500kg. After planting new varieties this year, the output has increased by 30% compared with last year. What is the output this year? (4 points) 2. Books in the bookstore can be discounted at 20% with a discount card. Xiao Ming bought a set of books with a discount card, which saved 9.6 yuan. What is the original price of this book? (4 points) 3. A pile of coal is conical, with a base diameter of 4m and a height of1.2m.. If each cubic meter of coal weighs about 1.5 tons, how many tons is this pile of coal? (4 points) 4.2065438+65438 In 2009 +65438 10 +0, my mother deposited 200,000 yuan in the bank for a fixed period of 3 years, with an annual interest rate of 3.85%. Three years later, my mother wants to buy a massage chair worth 20 thousand with interest. Are you interested enough? (4 points) 5. A cylindrical reservoir with a bottom diameter of 20 meters and a depth of 2 meters. (1) How many square meters does this reservoir cover? (2 points) (2) How many cubic meters does it take to dig this reservoir? (3 points) (3) Lay a layer of cement on the edge and bottom of the pool. What is the surface area of cement? (3 points) 6. In order to measure the volume of a small iron ball, a cubic iron block with a length of 3cm was immersed in a cylindrical tank filled with water, and the water level rose by 1.5cm. Then he immersed the small iron ball in the tank, and the water level rose by 2cm. How many cubic centimeters is the volume of this small iron ball? (No water overflows during soaking) (5 points)