Fill in the blanks. (10 integral, 0.5 integral for each space)
1, a five-digit number, the highest digit is neither a prime number nor a composite number, the thousandth digit is the largest sum number within ten, the hundredth digit is both an even number and a prime number, the tenth digit is a number without reciprocal, and the single digit is the greatest common divisor of six and nine. This five-digit writing () omits ten thousand digits, and the closest number is ().
1, the number a is divided by the number b, the quotient 5, and the remainder 2. If a and b are simultaneously expanded by 10 times, the quotient () and the remainder ().
3. A carton has five quarters, eight quarters and seven 1 yuan coins. It is possible to take out 1 yuan coins from it.
If a piece of wood is sawed into three sections, it will take Xiaoming 6 minutes. Dad saws wood three times as fast as Xiaoming. It will take Dad () minutes to saw the wood into five pieces.
My brother's age was my brother's three years ago, and this year my brother's age is my brother's, so my brother is () years old this year.
7. The degree ratio of the three internal angles of a triangle is 2: 3: 5, and this triangle is a () triangle.
8. Xiaogang domesticated white rabbits and black rabbits *** 184, with four more white rabbits than black rabbits, and Xiaogang domesticated white rabbits ().
Class 9.6 (1) held a skipping competition. There are 8 people in the first group, jumping 88, 94, 88, 98, 107, 94, 1 16, 88 respectively. The median of this set of data is ().
3.A=2×2×3，B=2×C×5。 Given that the greatest common divisor of A and B is 6, then C is () and the least common multiple of A and B is ().
6. The school bought a football and spent 168. Each basketball is C yuan more expensive than football, and each basketball is () yuan.
12. Expand the side of the cylinder to get a rectangle with a length of 18cm and a width of 12cm. The volume of this cylinder may be () cubic centimeters or () cubic centimeters. (л in this question is about 3)
6. A rope is wound around a tree. If it is near 10, there are still 3 meters left. If it is near 12, there are still () meters left.
18, a true fraction, numerator plus 1, fractional value is 1, denominator plus 1, fractional value is, this true fraction is ().
1 1, there are 249 flowers, which are circularly arranged in the order of 5 red flowers, 9 yellow flowers and 13 green flowers, and the last flower is (). Among these 249 flowers, () are green.
Second, judge. (Tick √ for the right and X for the wrong, each question 1, each question ***6)
1, the volume of a cone is the volume of a cylinder, so their bottoms and heights must be equal.
2. In the case of equal area, the circumference of the circle is the longest among the three figures: rectangle, square and circle. ( )
3. If the rounded number is 80,000, the maximum number may be 84,999. ( )
4. Saw a 2-meter-long wood into four equal lengths, each of which accounts for the total length of the wood, and each length is 0.5 meters. The time spent sawing each section is all the time. ( )
5. Make a cube with eight small squares of 1 cm3, and take a small square with the same surface area.
( )
6. The denominator of a fraction contains a factor of 2 or 5, and this fraction must be reduced to a finite decimal. ( )
Third, choose. (Fill in the number of the correct answer in brackets, blank 1, ***4)
1, a glass of milk, the ratio of milk to water is 1:4, after drinking half, the ratio of milk to water is ().
A, 1:4 B, 1:2 C, 1:3 D, uncertain.
2. A kind of brine, the salt accounts for 10% of the brine, and the weight ratio of salt to water is ().
a、 1: 1 1 B、 1: 10 C、 1:9 D、 10: 1 1
5. After 1/5 of team A is transferred to team B, the numbers of the two teams are equal. It turns out that Team A has more people than Team B ().
A, more b, more c, more d, more.
3. If a is a natural number (except 0), the largest of the following formulas is ().
A.a+b . a \c . a×d . a
Fourth, calculation. (14)
1, the off-model calculation can be simplified. (2 points for each question, ***4 points)
3.46×9.8+35.4×0.98-0.6×98
2. Find the unknown χ. (2 points for each question, ***4 points)
1.3χ+2.4× = χ+5.5 2.5+ 1.25- χ= χ-25%
3. Column calculation. (Each item 1 minute, correctly calculated 1 minute, ***6 points)
(1) Two times a number is 3 and less than 54. Find this number.
(2) What is the quotient of the reciprocal of the difference between150 and 0.8?
(3) What are the quotient of addition and division, sum, multiplication and product?
(3)
Fifth, the application problem. (4 points for each question, *** 16 points)
1. A batch of earthquake-resistant materials can be transported by large trucks and small trucks at the same time, and it can be transported in 6 hours. If the big truck is transported alone, it can be transported in 10 hour. How many hours does it take a person to transport it in a pickup truck?
Aunt Zhou sold two sets of fashions, each set of 480 yuan, one set was 20% higher than the purchase price and the other set was 20% lower than the purchase price. Q: How much did Aunt Zhou actually earn or lose after selling these two sets of fashions?
3. The sum of all sides of a cuboid block is 108cm, and the ratio of length to width is 4: 3: 2. Now I want to cut this cuboid into the largest cylinder. How many cubic centimeters is this cylinder?
4.32 students play singles or doubles in front of 10 table tennis table. How many table tennis tables are playing doubles?
Sixth, additional questions. (4 points). Two cars, A and B, leave Mazhuang Station for Taizhou Department Store at the same time. A train will arrive in 20 minutes and B train will arrive in 30 minutes. In this way, the two cars depart from AB with a distance of 360 kilometers. A car travels 140 km, and B car leaves. How many kilometers did the two cars travel when they met?