1, two adjacent sides () and two opposite sides () of the rectangle.

2. Between two parallel lines, you can draw () line segments perpendicular to the two parallel lines, the length of which is ().

3, a point outside the straight line can be () the vertical line of the known straight line.

4. There are two () on both sides of the angle, and the size of the angle is related to (), not ().

5. A car starts from Chongqing and goes to Chengdu-Chongqing Expressway. It takes 4 hours to get to Chengdu. It travels an average of 85 kilometers per hour, and the Chengdu-Chongqing Expressway is () kilometers long.

6. Fill in the box with >, = or.

25? 400 240? 50 130 ? 24 240 ? 13 350 ? 65 530 ? Fifty-six

12? 270 36 ? 90 785? 43 785 ? 34 48 ? 7 1 480 ? seven

7. The number of A is 28 less than 3 times that of B, the number of B is 205, and the number of A is ().

8. The product of multiplying two numbers is 120. If one factor is enlarged by 5 times and the other factor is reduced by 5 times, the product is (); If both factors are reduced by 2 times, the product is (). If one factor is magnified 3 times and the other factor is magnified 4 times, the product is ().

9. The machinery factory has two production workshops, and each workshop produces 175 machine parts on average every day. This factory produced about () parts in February this year.

10, a log is 20cm long, sawed into small pieces of equal length, and sawed four times, each time with a length of () cm.

Second, I will judge right and wrong.

1, two disjoint straight lines are parallel to each other. ( )

At 2.9: 30, the hour hand and minute hand on the clock face are perpendicular to each other. ( )

There are two zeros at the end of one factor, and there is no zero at the end of another factor, which is a product. There are at most two zeros () at the end.

4. Multiply any number by 1 to get the original number.

5. In a triangle, there can't be parallel line segments.

Third, I will choose

1、240? 5? The result of 240 is ()

A 1 B 5 C 1200 D 57600

2, a point outside the straight line as a parallel line of the known straight line, can be ().

A 1 B 2 C 3 d is countless.

3. Lele walked around a rectangle, and * * * took 205 steps. The average length of each step he takes is 62 cm, and the circumference of this land is about ().

a 1200m b 1200m c 12m d 120m。

4. A train departs from Station A at 8 a.m. and arrives at Mile Mile at 5 p.m.

In A 13, in B 3, in C 9 and in D 7.

Fourth, I can calculate.

1, oral calculation

150 ? 7= 8 ? 1 15 = 250 ? 60 = 330 ? 40 = 280 ? 5 =

306 ? 4 = 40 ? 250 = 2 13 ? 89 ? 598 ? 25 ? 72 ? 403 ?

2, with vertical calculation

756? 48 = 53 ? 609 = 90 ? 560 =

3. Use your favorite method to calculate.

420 ? 25 (485 + 2 18 )? 14 572 - 186-2 14

435+27 1+ 165+229 240+ 160? 50 ( 184+425)? three

Verb (abbreviation for verb) I can draw.

A vertical line and a parallel line pass through both sides of point B, which are angles respectively.

. B

Sixth, solve the problem.

1. Aunt Chen bought a commercial house in Century Sunshine Community, with an area of 103 square meter and a price of 2988 yuan per square meter. How much did Aunt Chen spend on buying this suite?

Xiao Fang plays 1 15 badminton every minute and plays 15 minutes. Chen Mei kicks 123 balls per minute, and kicks 14 minutes.

Which of them plays more? How much more?

3. Gree 1.5p air conditioner purchase price 1850 yuan, the price of the exclusive store is 2230 yuan. From June 8 to June 22 this year, a Gree store sold an average of four such air conditioners every day. How much money has this shop made recently?