2.2 ÷ 5 = ()% = () (fill in decimal places)
3. The original price of a coat is 300 yuan, but now it is 15% off, so it should be sold for () yuan.
4. According to the following figure, the formula can be calculated: _ _ _ _ _ ○ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
5. Fill in the appropriate volume or unit of volume in the brackets.
The net content of a can of Coca Cola is 355 (). The volume of a classroom is about 144 ().
The reciprocal of 6 is ().
7. Six students from Class One, Grade Six participated in the final of "China Cup", with the following results:12,95,120,69,80,95. The average value of this set of data is (), the median is (), and the mode is (), which better reflects the average level of these eight players.
8. Saw a cube into two identical cuboids. As a result, the surface area increased by 32. The original cube has a surface area of () and a volume of ().
Distinguish right from wrong (mark "√" for the right and "×" for the wrong and correct it) (2 points for each question, 8 points for * * *).
() 1. One English test, 40 students in one class for six years, two failed, with a passing rate of 98%.
() 2. The sum of three sides of a cuboid intersecting at a vertex is 15cm, and the sum of the sides of this cuboid is 60cm.
The number of football is less than basketball, so the number of basketball is more than football. Respondents: Enthusiastic users | 2011-6-2318: 35
I. Calculation (28 points)
1, oral calculation (10 points)
7/ 12+ 1/ 12 = 1-8/ 15 = 7/9+ 1/9 = 1/5-65438.
12÷ 100= 2.5×0.4= 3. 14×5= 1÷0.2= 2.9-2.09=
2, estimate (4 points)
x-4.9 = 6.02 7.89 x = 23.68 8/9+ 1.09≈ 13/25+ 19/40≈
X= X=
3, mixed operation (can be simplified) (6 points)
5/8 -3/5 + 1/4 2- 1/9 -8/9 1 1/20 +(9/ 10 - 1/5 )
4, solve the following equation (8 points)
X- 1.24 = 0.8 15X = 0.6 3/5+X = 1x÷ 12 = 4
Two. Fill in the blanks (26 points, 65438+ 0 points per blank)
The solution of 1 and equation 6χ=8.4 is ().
2. The position represented by the number pair (y, 3) is column () and row ().
3. The factor of natural number 12 is (), and that of natural number 6 is (). The common factor of 12 and 6 is ().
4. It is known that A ÷ B = 5 (both A and B are non-zero natural numbers), so the greatest common factor of A and B is () and the smallest common multiple is ().
5. The greatest common factor of the numerator and denominator of the score of 20/30 is ();
The least common multiple of denominators of fractions 8/9 and 7/ 10 is ().
6. Fractions below decimals (except for three decimal places)
3/4 5/911/201and 27/ 100
7. Fill in the appropriate units.
3( )= 3/ 10 ( ); 47( )= 47/ 100 ( );
8. All the simplest true fractions with a denominator of 6 have (), and their sum is ().
9. 1 contains () 1/6, so 1/2 contains () 1/6.
10, using 2/5 of a barrel of oil, that is to say, take () as the unit "1"; The number of boys in school is equivalent to 7/9 of that of girls, and () is regarded as the unit "1".
1 1, known 1/5.
12. The circumference of the two circles on the right is () cm apart.
13. Draw the largest circle in the rectangle below. The radius of this circle is () cm. You can draw a circle like ().
Three, judge right or wrong (6 points)
1, a point moves to the left, and if it is represented by a number pair, its number of columns becomes smaller and smaller. ( )
2. The numerator and denominator of the simplest fraction have no common factor. ( )
The scores of 3.8/9, 7/8, 6/7 and 5/6 are in descending order. ( )
4. Two different circles, the longer the circumference, the bigger the circle. ( )
5. Draw a circle with a compass. The distance between two feet of a compass is the diameter of a circle. ( )
6. The numerator of a false score must be greater than the denominator. ( )
Four, choose the correct answer (tick in the correct answer) (5 points)
1, the least common multiple of two numbers is 45:
□ 15 and 30 □45 and 90 □9 and 15.
2. Cut a 5-meter-long rope into 6 equal lengths, each of which belongs to this rope:
□ 5/6m □ 1/6 □ 1/5
Xiaoming collected 20 stamps after sending out his own 15 stamps. At this time, he has 49 stamps. The number of stamps Xiao Ming originally owned was:
□44 sheets □54 sheets □84 sheets
4. In the figure below, there is only one axis of symmetry:
□ □ □
5. What kind of box is used to box the following set of numbers, and five different results can be obtained.
1 2 3 4 5 6
7 8 9 10 1 1 12
□ Use □ Use □ Use
Five, solve the following problems (30 points)
The fifth grade 1 class (1) of experimental primary school donated money 1200 yuan, more than the fifth (2) class went to 280 yuan. How much is the donation from Class Five (2)? (Equation solving)
There is no day off in the factory this week. * * * steel production 126000 tons, with an average daily output of tens of thousands of tons? (Equation solving)
3. There are two pieces of wood, one is 18 decimeter long and the other is 12 decimeter long. To cut them into small pieces of the same length (each piece is a whole decimeter long) and there is no excess, what is the maximum length of each piece of wood? How many segments can a * * * be cut into?
4. An automatic sprinkler, spraying water at a maximum distance of 20 meters. How much water can this sprinkler spray on flowers and plants?
5. Two road repair teams jointly built a road. Team A built 2/7 of the total length and team B built 3/5 of the total length. How many parts of this road need to be repaired?
6. The master can process five parts in eight hours, and the master can process three identical parts in five hours. Excuse me, which of the two masters is more efficient?
Six, comprehensive utilization (5 points)
Fill in the blanks and answer the questions according to the table below.
1, the monthly coal consumption () of the two workshops is the biggest difference. () The monthly coal consumption is equal.
2. The coal consumption of the second workshop in recent five months showed a trend of ().
In March and April, the coal consumption of workshop 1 was ()/() of workshop 2.
4. The coal consumption of the second workshop in March accounts for ()/() of its total coal consumption in these five months.