Fill in the blanks. (65438+ 0 for each empty space, 24 points * * *) 1, Xiaoming spent 20 yuan money again, and after spending X yuan, there was () yuan left. 2. The greatest common factor of12 and 18 is (); The least common multiple of 6 and 9 is (). 3. Divide the 3-meter-long rope into 8 sections on average, each section is meters long and each section is full-length. 4. Xiaohong's position in the classroom is (5,4) right. She sits in column () and row (). Xiaoli's position in the classroom is column 5, line 3, which is represented by a number pair (,). 5. The smallest three digits that can be divisible by 2, 3 and 5 at the same time (); The maximum number that can divide 6 and 8 at the same time (). 6. If a÷b=8 is (and both A and B are not natural numbers of 0), their greatest common factor is () and their smallest common multiple is (). 7.(A is a natural number greater than 0), when A is a true fraction, when A is a false fraction, and when A is equal to 3. 8.==()÷9=44÷()9. Fill in the appropriate scores in the brackets. 35 cubic decimeter = () cubic meter for 53 seconds = () 25 hectares = () square kilometer10,20, the largest is (), and the smallest is (). 1 1, there is a cube dice, and the numbers on six faces are 1, 2, 3, 4, 5 and 6 respectively. When you roll the dice once, the possibility of getting a composite number is, and the possibility of getting an even number is. Second, judge carefully. (5 points) 1, the equation must be an equation, but the equation is not necessarily an equation. ................................ () 2. False scores are all less than 1. ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………… () 5. Divide a wire into four sections, each of which is meters. ........................... () Third, choose carefully. (5 points) 1. A rectangular piece of paper with a length of 24 cm and a width of 18 cm should be divided into small squares with the same size, and there is no redundancy. The smallest can be divided into (). A. 12 B. 15 C.9 D.6 2 is a true fraction, and the value of x has () possibilities. There are 28 boys and 25 girls in Class A, Class 34C, 5D 63 and 5 (3), and boys account for () of the whole class. A.B.C.D.4, divide 4 grams into 5 parts on average, each part is (). Total weight. The greatest common factor of two numbers is 4 and the least common multiple is 24. These two numbers can't be (). A.4 and 24B.8 and 12C.8 and 24 IV. Carefully calculate (40%) 1 and write the number 4% 6.3+7 = 21.5+9.5 = 2.5× 0.4 = 42.8-4.28 = 65438. Solve the equation:12% x-7.4 = 82x = 3.6x÷1.8 = 3.6x+6.4 =14.43. Find the greatest common factor and the least common multiple of the following groups. (9%) 10, 9 14 and 4226 and 394, and the equation calculation: 9% (2.44-1.8) ÷ 0.42.9×1.4+2× 0. (6 points) ① The sum of 7 x's is 10.5. Application questions: (1-3, 27%, 5 points for each question, and 4 points for the rest) 1. In the 28th Olympic Games in China, there were 7 male athletes 138 and 7 female athletes, twice as many as male athletes. How many male and female athletes are there? 2. In Beijing's sovereignty over the 2008 Olympic Games, * * has 105 valid tickets, and Beijing has 56. What percentage of valid votes did Beijing get? Party A, Party B and Party C go to the library to borrow books. Party A comes every six days, Party B every eight days and Party C every nine days. If they meet in the library on April 25th, when will they all go to the library next time? There is a piece of cloth 8 meters long, just enough to make 12 pairs of pants of the same size. How many meters of fabric is used for each pair of trousers? How much of this cloth is used for each pair of trousers? 5. Cut a rectangular piece of paper with a length of 20 cm and a width of 16 m into squares with the same size and as large an area as possible. There is no paper. How many pieces can I cut at most? 6. Two cars leave from Party A and Party B at the same time. A travels 48 kilometers per hour and B travels 54 kilometers per hour. When they met, the two cars were 36 kilometers away from the midpoint. How many kilometers is it between Party A and Party B? Name of the final examination paper _ _ _ _ _ _ _ _: 1. Fill in the brackets with your satisfactory answers. (20 points) 1, 8,359,004 writing (), rounded to ten thousand places is about () 2, 1.75 hours = () hours = () 7,800 square meters = () square kilometers 3. Divide the 4-meter-long iron wire into five sections on average, with the total length of each section () () and the length of each section. 4. The unit of the score is 1 10, and the maximum true score is (). It adds at least () such decimal units to become the smallest odd number. 5. The ratio of numbers A and B is 8: 5, number B is 25 and number A is () 6. In 25: x, when X= (), the ratio is 1, and when X= (), the ratio is meaningless and can be proportional to 23:2. 7. Party A is twice that of Party B and Party C is twice that of Party A, so Party A: Party B: Party C =()8. A worker produced 200 parts, of which 4 were unqualified, and the qualified rate was () %9. If a job takes 12 hours to complete, it takes 23 hours to complete (). 10, it is known that the ratio of m to m is 2: 3, and their greatest common divisor is 16, so M= (). Second, with a sharp eye, right and wrong are clear. (6 points) 1, and the formula with unknown number is called equation. () 2. Integers less than 3 are 1 and 2. () 3.9 15 cannot be converted to a finite decimal. () 4, because 45 2/B22. The common divisor of these two numbers is () 12, 24, 36. 8. Cut off a cuboid with small pieces (as shown). The following statement is completely correct: () ① The volume decreases and the surface area decreases; ② The volume decreases and the surface area increases; ③ The volume decreases and the surface area remains unchanged. 9. Use rectangular paper of equal size, each with a length of 12 cm and a width of 8 cm. To spell a square, you need at least this rectangular piece of paper (). 14, 26, 38, 10, and a 6-meter-long rope. Cut 1/2 first, then 1/2 meters. At this time, there is still ()1.5m 2.5/2m 3.0m 3. Calculation problem: 28% 1. Find the surface area and volume of a cuboid (unit: decimeter) 4%a=8b=5c=42. Off-model calculation (simplified) 12% 6/7+2/. 7-3/142/3+5/9-2/3+5/98/9-(1/4-1/9)-3/43. Find the greatest common divisor and the least common multiple of the following groups: 4%24. Subtract the difference between 7/ 15 and 7/30 from a number and the result is 2/3. What's this number? (solved by equation) 4. 4% of the drawing problems, please use shading to indicate 1/2 (at least 5 kinds). 5. Application problem: 30% 1. A piece of land, including 1/5 kinds of corn, 1/6 kinds of vegetables, and the rest kinds of watermelons. What is the proportion of watermelons planted in this land? There are 24 boys and 20 girls in one class. How many times more boys than girls? What is the percentage of boys to girls? Students take part in environmental protection action. The fifth grade cleared 3/5 tons of garbage, less than the sixth grade 1/8 tons. How many tons of garbage were removed in the fifth and sixth grades? 4. A rectangular iron plate with a length of 40 cm and a width of 30 cm, the four corners are cut off and the sides are 4 cm long, and then welded into a box without a cover. How many liters is its volume? 5. A car traveled192km in the first 3 hours and 58km/h in the last 2 hours. What is the average speed of this car?