People's education publishing house, fifth grade primary school, volume one, mathematics final exam papers and answers

Fill in the blanks. (Per grid 1 minute, ***24 points)

1, according to18× 64 =1152, we can know that 1.8× 0.64 = (),11.52÷ 6.

The highest rank of the quotient of 2.686.8÷0.68 is (), and the result is ().

3. "Rounding" two decimal places reserves integers to obtain an approximate value of 3, which may be at least () and at most ().

4, 34.864864 ... is expressed as () in a simple way, and three decimal places are about ().

5. if it doesn't count, just fill in ">"

0.5÷0.9 ○0.5 0.55×0.9 ○0.55

36÷0.0 1○3.6× 100 7.3÷0.3○73÷3

6. Xiaoming is one year old, his father is three years older than him and his father is () years old.

7. A dictionary costs 25.5 yuan. Teacher Sun takes 150 yuan and can buy at most () copies.

8, 0.62 hectares = () square meters 2: 45 = ()

2.03 hectares = () hectares () square meters 0.6 minutes = () seconds.

9. For a right triangle, the length of the opposite side of the right angle is 10 cm, the other two sides are 8 cm and 6 cm respectively, and the height of the opposite side of the right angle is () cm.

10. There are two white balls, three red balls and five blue balls in the box. Touching a ball from the box may have () results. Touching () the ball is the most likely, and the possibility is ().

1 1, a school arranges card numbers for each student. If the mantissa is set to 1 for boys and 2 for girls, for example, 9740 1 1 stands for 1997, then the students in Class 4 are boys.

Two, true or false (8 points)

1, a2 and 2a have the same meaning. ( )

2.3.675675675 is a cyclic decimal. ( )

3. The graphics seen from the top, front and left are the same. ( )

4. Two triangles with the same area can be combined into a parallelogram. ( )

5, decimal 0.05 times, the product must be less than 0.05. ( )

6. The quotient of fractional division is less than the dividend. ( )

7. An equation with an unknown number is called an equation. ( )

8. The area of a parallelogram is twice that of a triangle with the same base and height. ( )

Three. Multiple choice questions (65438+ 0 points for each question, ***6 points)

1, each empty bottle can hold 2.5 kilograms of salad oil. Miss Wang needs at least () bottles to put 25.5 kilograms of salad oil in such bottles.

a、 10 B、 1 1 C、 12

2, the following two equations are equal to ()

A, a+a and 2a B, a×2 and a2 C, a+a and a2

3. The following formula is equal to the result of 99÷0.03 ().

a、9.9÷0.003 B、990÷0.003 C、9900÷30

4, a figure composed of building blocks, from the front or from the side, this building block has ().

A, 4 B, 6 C, not necessarily

5. In the picture on the right, two triangles A and B are drawn in two equilateral squares (indicated by shading), and their areas are compared by ().

A, A has a large area, B has a large area, and C is equal.

6. Draw the parallelogram into a rectangle (with the same side length) with an area of ().

A, B is bigger than the original, C is smaller than the original, and it is as big as the original.

Four, the calculation problem (32 points)

1, a number written directly. (0.5 points for each question, ***5 points)

3.5×0.2= 10÷0.5= 6×0.25= 0.63÷0.9= 1.8×0.4=

0.99÷0.0 1= 1.2×4= 3.9×0.0 1= 2.33× 1.2= 1.25×0.8=

2. Column vertical calculation. (Check the number with *, and keep two decimal places with △. ) (12 points)

3.06×4.5= * 40.8÷0.34

0.38×3.2 △ 16.65÷3.3

3. Solve the equation. (9 points)

x- 1.5 = 12.9 9x+5x = 8.4 6.8+3.2X = 14.8

4. Column calculation. (**6 points, 3 points for each small question)

What is the product of (1)3.6 minus 0.8 times the sum of 1.8 and 2.05?

(2) 7 times a number MINUS this number, and the difference is 42.6. Find this number.

Five, solve the problem (30 points)

1. The farm tool factory plans to produce 1378 small farm tools. It has been produced for 10 days, and 9 1 piece is produced every day, and the rest will take 4 days to complete. How many pieces do you have to make every day on average?

2. The original price of a ballpoint pen is each 4.8 yuan. After the price reduction, each ballpoint pen is cheaper in 0.3 yuan. I used to need 150. How many pens can I buy now?

3. There are peach trees and apricot trees in the orchard-there are 1700 trees, and the number of peach trees is four times that of apricot trees. How many peach and apricot trees are there? (Equation solving)

4. Surround the wall with a rectangular flower bed. The width of this rectangle is 6 meters and the fence around the flower bed is 46 meters long. What is the area of this flower bed?

5. There is a trapezoidal vegetable field with an upper bottom of 32 meters, a lower bottom of 48 meters and a height of 60 meters. If 25 Jin of cabbage is collected per square meter, how many Jin of cabbage is collected in this land?

6. Two cars, A and B, set off from two places at the same time, with a distance of 285 kilometers, and met five hours later. Car A is 30 kilometers per hour, and car B is how many kilometers per hour?

Fifth grade math reference answer

Fill in the blanks.

1、 1. 152 1.8

2. Thousand 10 10

3、2.50 3.49

4、34.8(.)64(.) 34.865

5、gt； & lt= & gt

6、3a+b

7、5

8、6200 2.75 2 300 36

9、4.8

10,3 Five tenths of the blue ball