20 14 primary school mathematics graduation examination paper (1) 1. I can do the calculation. 1, the number written directly is 32+21= 83× 716 = 0.36 ÷ 0.6 = 74-21= 65+172+6/kloc-. 7× (73+141) = 3.27+1.83 = 2. Solve the equation. 9.5? -3? =5.6+7.4 9 1:3 1= 12 1:? 1-60%? = 76× 48 35 3. Recursive equation calculation can simplify the simplification. 254× 9913.6-(2.6+0.25 ÷ 25 ÷)1200 ÷ [56× (73-83)] (136×1. ② Half of a certain number is 6 and less than 12.5. How did you find this number? 5. Find the area of the shaded part. (unit: cm) 6 8 2. Fill in the blanks and don't leave out. 1, a nine-digit number, the highest digit 70,000,000,000 and10,000 digits are all 5,000,000 digits, and the rest digits are all 0. This number is written in units of "ten thousand", and the mantissa after "one hundred million" is omitted. 2. Fill in the appropriate number in (). 3.2 hours = () hours () minutes 3kg 50g = () grams1.2m = () decimeter = () cm 3,3: () =12 ÷ () = 0.75 =12 = In a day, the hour hand revolves around the clock face, the minute hand revolves around the clock face, and the second hand revolves around the clock face. There are () days in the first quarter of this year. 6. Put 50g of salt into 500g of water. The ratio of salt to brine is, and the ratio of water to brine is. 7.()45 tons more than 20%, () less than 20% is 40. 8. Cut the 3-meter-long wire into 7 segments on average, each segment is () meters long, and each segment accounts for () of the total length. 9. Put a cuboid fish tank with a length of 1.2m, a width of 0.6m and a height of 4m in the lobby. The area of this fish tank is. 10. The radius of the bottom of the cylinder is 5cm, and the transverse expansion is just a square. The height of the cylinder is (), the space occupied by the cylinder is (), and the volume of the cone with the same base and height is (). 1 1, the sum of dividend, divisor and quotient is known as 1600, divisor is 30, remainder is 10, and quotient is (). Third, make a detailed analysis and make a judgment. (Tick √ in brackets for correctness, tick ×) 1. The radius of a circle is proportional to its circumference and area. () 2. Rewrite the line segment scale of 0 4080120km to the digital scale of 4000000 1. () 3. Remove the 0 of 0.7050 after the decimal point, and the size remains unchanged. The volume of a cylinder with equal bottom and equal height is three times that of a cone. If the radius of the bottom of the cone is enlarged by three times, their volumes will be equal. () 5, greater than 90? This angle is called obtuse angle. ? () Fourth, compare before choosing. (Fill in the serial number of the correct answer in brackets) 65 438+0, 32 of A is equal to 54(A of B (both A and B are greater than 0), then (). The number of A. A is bigger than that of B.B. It is as big as D. It can't be compared. 2. Among lines, rays and line segments, the longest is (), and the shortest is (). A. straight line B. ray C. line segment D. uncertainty 3 To describe the patient's temperature, () should be the most appropriate, and () should best reflect the occupation of various fruit tree planting areas in the orchard. A. Bar chart B. Line chart C. Fan chart 4. () must be two numbers that are coprime. A. two odd numbers B. two even numbers C. two prime numbers D. two composite numbers 5. Enlarge the rectangle by 2: 1, and the ratio of the enlarged area to the original area is () 1, and draw a circle with a radius of 1 cm. 2. Operate, fill in and draw as required. (1) Measure the length and width of this test paper () cm (keep the whole cm) (2) Calculate the circumference of this test paper. (3) Draw the plan of this paper with the scale of 1: 10. Sixth, solve problems with mathematics. 1, only the formula does not count ① the national construction bond of 3,000 yuan bought by Aunt Zhang in 2007, which expires on May 15 this year, with an annual interest rate of 2.88%. Aunt Zhang is going to take it back and donate it to the rehabilitation project for disabled children when it expires. How much did Aunt Zhang donate? Formula: ② One batch of goods 160 tons, 4 1 for the first transportation, and 3 1 for the second transportation. How many tons were shipped for the second time? Formula: 2. When Class 6 (1) called the roll in the morning, there were 46 people in the classroom, two of them were persuaders, and they were taking part in duty activities. Only two students were hospitalized with fever, so they couldn't come to school. Could you tell me the attendance rate of class 6 (1) in the morning? 3. It is planned to build a canal of 3600 meters, and the planned 5 1 was completed six days ago. According to this calculation, how many days will it take to complete the canal? 4. A truck transports goods from place A to place B with an average speed of 48 kilometers per hour. It takes three hours to arrive and half an hour to return. What is the average speed of this truck? 5. To make a batch of parts, Master Wang worked alone for 4 1 hour and alone for 2 1 hour. Can they do it together for a few minutes? 6. Make up an application problem according to the picture and solve it in parallel. The planned χ is greater than 25%, and actually 300 pieces of 7, A, B and C make 2050 parts. It is known that the number ratio of parts manufactured by A and B is 5: 3, and that of parts manufactured by B and C is 4: 3. How many parts will each of the three workers produce?