These are the midterm and final papers. See if it helps. 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. A.3b.4c.5d.6There are 28 boys and 25 girls in classes 3 and 5 (3), and boys account for () of the 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 24 B. 8 and 12 C. 8 and 24 Fourth, carefully calculate (40%) 1 and write the number 4% 6.3+7 = 21.5+9.5 = 2.5× 0.4 = 42.8-4. Recursive calculation: 9% (2.44-1.8) ÷ 0.42.9×1.4+2× 0.1630.8 \ (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? In Beijing's bid to host the 2008 Olympic Games, * * has 65,438+005 valid tickets, and Beijing has 56 tickets. 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