1, directly write the calculation result (8 points)

100×7.8= 780 0.9×0.7=0.63 0.25×8= 1 1.4×0.5=0.7

1 1÷ 100 = 1 1 6.5÷ 1.3= 5 2.87-0.7= 2. 17 0.3 1÷0.0 1=3 1

2, written calculation and check (6 points)

( 1) 1.06×4 4.24 (2)43.5÷0.29 150

3. Try to calculate the following questions simply. (12)

( 1)0.75×2.5×0.4 (2)3.74×8.3+ 1.7×3.7 (3)2. 16×0.8÷0.27 (4)(34.7- 17.5)×(0.54÷0.9)

4, solve the equation (6 points)

( 1)5-4.2=6.3 (2)÷ 1.2=4.8 (3)6 + 1.6 =30.4

Second, fill in the blanks by thinking (2 points for questions 5, 6, 7 and 8, and the rest 1 point, ***25 points).

1, 80 square centimeters = () square decimeter = 0.43 hectares = () square meters.

2, 3.666 ... is a decimal (), simply written as (), and two decimal places are reserved, which is about ().

3. According to 32× 43 = 1376, we can write 3.2×43= (), 0.32×4.3= (),

1376÷32=( ), 137.6÷4.3=( )。

4. fill in ">", "

5.8 1 ○5.8 12.7÷0.89 ○ 12.7 8.5÷0.0 1 ○ 8.5× 10

2.4÷2.4 ○ 1 15.86×0.99 ○ 15.86 29.4×4.3 ○ 294×0.43

5. Teacher Wang bought 30 pens as prizes, which cost RMB * *, and the price of each pen was RMB ().

(represented by a formula containing letters)

6, the fruit shop shipped 200 kilograms of litchi, sold 2 baskets, each basket is kilograms, and there is still ()

Kilogram. (represented by a formula containing letters)

7. The area (in centimeters) of the parallelogram in the picture below is () square centimeters.

8. The base of a triangle is 18 decimeter, the height is half of the base, and the area is () square decimeter.

9. Master Zhang scored the following five times when he played bowling: 8, 9, 10, 10, 6. Master Zhang's average score is () and the average score is ().

Three. Distinguish between right and wrong (mark "√" for those who think it is right and "×" for those who think it is wrong, 5 points)

The quotient of 1 and 3.6÷ 1.7 is 2 and the remainder is 0.2. ( )

2. One factor is expanded to its 10 times, and the other factor is reduced to its, and the product is unchanged. ( )

3, =2 is the solution of equation 5+3.5×4=24. ( )

4、50.4× 1.9- 1.8=50.4×0. 1=5.04 ( )

5. If one of the seven digital cards "1-7" is randomly selected, the possibility of extracting odd numbers is the same as that of extracting even numbers.

( )

Fourth, give priority to employment (number of correct answers in brackets, 10)

1, in the following categories, the largest quotient is ().

a、8.2÷0. 1 B、8.2÷0.0 1 C、8.2÷0.00 1

2. As shown below, two parallel lines can also draw a triangle with the same base and height as triangle ABC.

A, 1 B, 2 C, 4 D, countless

There are 8 balls in an opaque box, including 3 red balls and 5 white balls. The possibility of taking a ball from it and it happens to be a red ball is ().

A, B, C, D,

The length of a rectangle is one centimeter, and the width is two centimeters longer than the length. The circumference of this rectangle is ().

a、a+a+2 B 、( a+a-2)×2 C、a+a-2 D 、( a+a+2)×2

5. Look at the picture on the left below, and the picture you see is ().

5. Calculate the area of the shaded part below. (5 points)

Six, solve the problem (5+6+6+6, ***23 points)

1. Maxim's Bakery specially made a birthday cake, each cake needs 0.64kg flour. Li Shifu got12kg of flour to make cakes. How many birthday cakes can he make at most?

2. A toy factory originally needed materials from 4.5 yuan to make a plush rabbit. Later, the production method was improved, and each one only needed materials from 4.2 yuan. I was going to make 280 plush rabbits. How many can I make now?

3. There are more students in Grade 5 than Grade 4 100, and the number of students in Grade 5 is 1.4 times that of Grade 4. How many students are there in Grade Four and Grade Five? (column equation solution)

4. The shape of the vegetable field is shown in the figure below. If you collect 4.5 kilograms of vegetables per square meter, how many kilograms of vegetables can this vegetable field collect?