Fill in the blanks (2 points for each small question, 20 points for * * *)
1. Xiaoming bought four erasers, one yuan each, and needed () yuan. When a= 1.5, () yuan is needed.
2. Fill in ">" in ○. , "<, or" = ".
3.78÷0.99○3.782.6× 1.0 1○2.6
7.2× 1.3○7.2÷ 1.3 9.7÷ 1.2○9.7— 1.2
3. Fill in the appropriate number in ().
2.05 tons = () tons () kilograms 3 liters 50 ml = () liters.
4. A two-digit decimal plus a decimal is 2.3. The maximum value of this two-digit decimal is () and the minimum value is ().
5. The decimal point of a number is moved two places to the left and three places to the right, and then it is 0. 123. This number is ().
6. The parallelogram has a base of 2.6 cm, a height of 4 cm and an area of ().
The base of a triangle is 2.5 cm, the area is 10 cm2, and the height is ().
7. A pair of trousers is N yuan, and the price of a coat is six times that of a pair of trousers, so a coat needs () yuan and a suit needs () yuan.
8.50 1 class conducted a 1 minute skipping test. The scores of six students are: 137, 142, 136, 150, 138 and 65438+.
9. The six faces of the cube are written with 1, 2, 3, 4, 5 and 6 respectively. The possibility of throwing a "3" every time is (), and the possibility of throwing an even number every time is ().
10. A car needs 8 liters of gasoline to drive 100 km, () liters of gasoline to drive 1 km, and 1 liter of gasoline can drive () km.
Second, the judgment (65438+ 0 points for each small question, ***5 points)
1. The divisor is unchanged, but the divisor is expanded by 100 times, and the quotient is also expanded by 100 times. ( )
2. The square of a is a× 2 ... ()
3. Only 0.3 is a number greater than 0.2 and less than 0.4. ( )
4. Two triangles with the same base and height can be combined into a parallelogram. ( )
5. The median and average of a set of data may be equal. ( )
Third, the choice (65438+ 0 points for each small question, ***5 points)
1.2.695 The reserved two decimal places are ().
a、2.69 B、2.70 C、0.70
2. Given that the product of 0.35× 170=59.5 and 3.5× 1.7 is ().
0.595 B、5.95 C、59.5
3. Observe a cuboid in one position, and at most you can see its () at a time.
A, one face B, two faces C and three faces.
4. Triangle and parallelogram have the same area and the same base. The height of a triangle is 2 decimeters, and the height of a parallelogram is () decimeters.
a、 1 B、2 C、4
5. The base and height of the parallelogram are enlarged by 2 times respectively, and its area is enlarged by () times.
a、2 B、4 C、6 D、8
IV. Calculation (4 1 min)
1. Write numbers directly (0.5 points for each small question, ***5 points).
0.25×8= 3.02— 1.5= 0.4×0.4= 2.4×2.5=
1.6÷0.0 1= 0÷7. 12= 12.3÷6= 1.9÷ 1=
0.25×0.4÷0.25×0.4= 4×( 1.5+0.25)=
2. Longitudinal calculation (2 points for the first item, 3 points for the second item and 5 points for * * *).
2.06×5.5 54.72÷ 1.8 (check)
3. Calculate the following questions (simplify them if you can) (3 points for each small question, *** 18 points)
48-2.3× 12 50×(0.8+0.4) 7.34×2. 1+7.34×7.8+7.34× 1. 1
20.5÷ 1.25÷0.8 (8. 1-5.4)÷3.6+85.7 9.88×9+9.88
4. Solve the equation (3 points for each small question, ***6 points)
3x-6.8 = 20.2 1.4x+2.6x = 120
5. Operation and graphic calculation (7 points)
(1) The sides of the two squares in the figure below are 6 cm and 4 cm respectively. Find the area of the shaded part. (3 points)
(2) The side length of each small square in the figure below is 1cm. A: Draw a triangle with a base of 4cm and a height of 3cm; B: Draw another parallelogram with an area of12cm2. (4 points)
Verb (abbreviation of verb) comprehensive utilization (***29 points)
(a) only column type, not calculation. (2 points for each small question, ***6 points)
1. It is known that the area of a triangle is12cm2, the base of this triangle is 8cm, and how many centimeters is its height?
The circumference of the square pool is 2.2 meters. How many square meters is this swimming pool?
3.50 1 class has 40 students, and class 502 is 50 1 class 1.2 times. How many students are there in these two classes?
(2) Solving problems (23 points)
1. The experimental primary school bought two footballs and five basketballs and spent 287 yuan. How much is each football, 49 yuan? (4 points)
There are 700 peach trees and pear trees in the school practice base, and the number of pear trees is 2.5 times that of peach trees. How many peach and pear trees are there in the base? (Equation solving) (4 points)
A car load of coal arrived in the school canteen. It was originally planned to burn 0.25 tons per day, which can last for 24 days. Now the boiler technology has been improved, saving 0.05 tons every day. How many days can this car burn coal? (4 points)
4. The total length of the highway from Huzhou to Shanghai is 168km, and two cars, A and B, start from two cities at the same time. 1.5h later, the first car was 58km/h. How many kilometers per hour is the B train? (5 points)
In order to encourage residents to save water, Huzhou Water Supply Company has formulated the following charging methods:
The monthly water consumption of each household is within 10 ton (inclusive) and 1.7 yuan/ton. The part exceeding 10 ton shall be charged as 2.5 yuan/ton. (6 points)
(1) Xiaoming 10 monthly water consumption 12 tons. How much should he pay?
(2) Xiaohongjia/KLOC paid the water fee in 37 yuan in October. How many tons of water did her family use in October?
Additional questions for intransitive verbs: (5 points for each small question, *** 10)
1. Found a rule to fill numbers.
6.25 , 2.5 , 1 , ( ) , 0. 16
The circumference of a rectangle is 60 cm, and its length is twice its width. Find the area of this rectangle.
Reference answers and grading standards for the final exam of fifth grade mathematics
Fill in the blanks (2 points for each small question, 20 points for * * *)
1.4a 6 yuan 2. >; 、gt； 、gt； 、& lt
3.2 50 3.05 4.2.34 2.25
5. 1.23 6. 10.4 cm2 8 cm
7.6n 7n 8。 142 140
9. 1∕6 1∕2 10.0.08 12.5
Second, judge. (65438+ 0 point for each small question, ***5 points. ) ×、×、×、×、√
Third, choose. (1 each small question, ***5 points) b, b, c, a, b.