First, knowledge review. 22%

1, change the operation order of 37 1-2942 to calculate the difference sum quotient first, and finally calculate the product, then the original formula becomes ().

2, a number, hundreds, percentiles and thousandths are all 5, and all other digits are 0. This number is (), accurate to the decimal point is ().

3.23.43 3 in digits means (), and 3 in percentile means ().

The lengths of the three sides of the triangle are 3cm, 3cm and 4cm respectively. According to the side length, this is a () triangle; It takes at least () cm of rope to form this triangle.

5. The pronunciation of 76.00 1 is (), and its lowest digit is ().

6.82cm = () m 9.08t = () t () kg

30g = () kg104m = () m () cm.

7. From small to large, arrange 0.7 0.6 0.609 0.66 ().

8. 10.0827 is accurate to the tenth place (), and three decimal places () are reserved.

9. Move the decimal point 26.4 to the right by two places, which is twice the original decimal point. If the original decimal point is reduced by 10, the decimal point must be reduced, and the result is.

10, the base angle of an isosceles triangle is 55? O, the degree of the vertex angle is.

1 1. After the decimal point of a decimal point is moved two places to the right, it is higher than the original number 198, and the original number is ().

Second, judge right or wrong. 5%

1. Three ropes with lengths of 3cm, 4cm and 5cm cannot form a triangle. ( )

2, 1.26 is expanded to its 1000 times, and then the decimal point is moved to the right by two places, which is 0. 126. ( )

3,4.8 has 48 1%. ( )

4. Decimals are smaller than integers. ( )

5、27÷(3+9)=27÷3+27÷9。 ( )

Third, choose carefully. 5%

1. The right triangle is () degrees high. A, 1 b, 2 c and 3

2, a vertex of a triangle to the opposite side () is the height of the triangle.

A, straight line b, ray c, line segment d and vertical line segment

3. First move the decimal point of a decimal to the right, and then move it two places to the left. This decimal point ().

A, expand 10 times b, shrink 10 times c, shrink 100 times.

4. The three sides of a right triangle are 3cm, 4cm and 5cm respectively, and the lengths of the two vertical sides of this right triangle are () respectively.

A, 3cm and 4cm b, 3cm and 5cm c, 4cm and 5cm.

5. Estimate: Which of the following answers is close to your age? ( )

A, 540 hours b, 540 weeks c, 540 months

Fourth, ingenuity. 28%

1, oral calculation. 6%

1.3-0.8=? ? 63090=? ? 6-0.37=? ? 100+ 1000=

600=? ? 2.73+0.27=? ? 0.75+0.3=? ? 52+3=

4.3 1000=? ? 0.69+ 1. 1=? 300 18=? ? 6+64=

2. Off-mold calculation. 16%

49 102-249? ? 125768? ? 8.33-2.43-4.57

9932? ? 6.7+2.63+4.3? ? 4 1000(4 15)

58248(85-78)? ? 84028+70 18

3, text questions 6%

What is the sum of the product of (1)36 times 15 plus the quotient of 80 divided by 5760? (2) The sum of 8.7 and 7.8 is a number.

Is greater than 1.4, find this number.

5. The number of extracurricular books read by four groups of students in one class in Yucai Primary School for four years is as follows: 10%.

One, two, three, four.

Reading 50 60 40 70

1. Please complete the statistical table and make a broken line statistical chart. 3%

70.bit by bit, bit by bit

60

50

40

30

20

10

2. According to the statistical chart: 3%

① The first group read () fewer books than the fourth group;

② The second and third groups read () books;

③ Four-year classes read () books on average in each group.

What other questions do you want to ask? 3%

First, first

(Ben) 1234

Group group group group

Six, use the knowledge to solve the following problems. 24%

1. Miss Wang bought 9 pens and 9 ballpoint pens, and the pens were used in 270 yuan. The ballpoint pen goes to 45 yuan. How much is each pen more expensive than a ballpoint pen?

Read a 280-page story book aboveboard. It took seven days to finish. I read page 120 three days ago. How many pages have I read on average every day in the last four days?

Three identical looms weave 720 meters per hour. If you add two looms, how many meters can you weave in five hours?

4. The fruit shop bought back 150 kg of bananas, and the apples were 50 kg more than three times the bananas. How many kilograms of bananas and apples did you buy back?

The school gymnastics team has 240 members, which is three times less than that of the dance team. How many members are there in the dance team?

The average monthly turnover of stationery stores last year was 9,000 yuan, which is expected to reach last year's turnover two months ahead of schedule this year. What is the expected average monthly turnover this year?

Seven, painting questions 6%

According to the description below, the location of each place is displayed in the upper right corner.

(1) The post office is located at150m northeast of the downtown square.

(2) Xinhua Bookstore is located 250 meters southeast of downtown square.

(3) ICBC is 300 meters south of the downtown square.