1 9,090,900, write (); Rewrite it as "10,000", and the number is (), which is about () billion.

2.600606000 is pronounced as (), where 6 in the position means (), 6 in the middle means (), and the last 6 means ().

3. The angle formed by the hour hand and the minute hand is () degrees at 6 o'clock and () degrees at 15.

4. The six digits consisting of 0, 2, 4, 7, 5 and 1 are (), and the smallest six digits are ().

5. The product of two digits multiplied by three digits is () digits, and the minimum is () digits.

6. In the formula □ 12÷53, let the quotient be two digits, and the minimum value of□ is (); To make the quotient a single digit, please fill in ().

7. Put 50 teacups in a box, 6 in each box, and the rest ().

8. The quotient of dividing two numbers is 80. If both the dividend and the divisor are multiplied by 4, the quotient is ().

9. The algorithm represented by (a+b)+c = a+(b+c) is (); The commutative law of multiplication is represented by letters as (), and the distributive law of multiplication is represented by letters as ().

10, 1 right angle+1 right angle = ().

1 1, to reflect the change of temperature, it is more appropriate to describe it with () statistical chart. To compare the quantity, it is more appropriate to use () statistical chart to describe it.

12, minus 6 degrees Celsius is (), and minus 6 degrees Celsius is ().

13. If you want 8□999 to be closest to 80,000, you can fill in the number () in □.

Two. True or false (tick "√" correctly and "×" wrongly) (5 points)

1, 0 is neither positive nor negative. ( )

A ray is 500 million meters long. ( )

3、 590÷60=59÷6=9……5。 ( )

4. A figure composed of two rays is called an angle. ( )

When one factor is enlarged by 2 times and the other factor is reduced by 2 times, their product remains unchanged. ( )

Three, multiple choice questions (please fill in the serial number of the correct answer in brackets) (5 points)

1, 7: 00 15, the angle between the hour hand and the minute hand on the clock face is ().

A. right angle B. obtuse angle C. acute angle D. flat angle

2. The formula of the calculation result equal to 63× 10 1 is ().

A.63× 100+ 1 b . 63× 100- 1 c . 63× 100+63d . 63× 100× 1

3. Look at the angle of 300 with a magnifying glass of 100 times, and the angle you see is ().

300 dollars

30

60

north

Xiaofang

Mandy (female name)

4. Xiaofang sees that Xiao Min is 30 east of the south.

Mandy looked at Xiao Fang in the direction of ().

A. 30 degrees north by northwest

C. 30 N, 60 E

5. Among the following angles, () is an obtuse angle.

A. the sum of two acute angles B. the sum of an acute angle and a right angle C. the sum of two right angles

Four, the calculation problem (28 points)

1, a number written directly. (10)

5200-300= 380+200= 50×60= 0× 100= (20+4)× 25= 2 100÷30= 108×5= 9600÷800= 14×30= 7×48+7×52=

2, column vertical calculation and checking calculation. (6 points)

260×45= 1790÷ 17=

3. Off-mold calculation. (Simplification that can be simplified) (12 points)

990÷[ 1 1×(62-57)] 44×25

9000÷ 125 75×299+75

V. Operational problems (8 points)

1. Draw parallel lines and vertical lines of known straight lines through point p.2.. Draw an angle of 150.

P

3.

(1) Please write down Xiaohua's route home from school. (2) If Xiaohua walks 50 meters per minute, how long will it take him to get home?

Six, solve the problem (28 points)

1, the bus speed is 60 kilometers per hour, and the truck speed is 52 kilometers per hour. Two cars leave from the same point and in the same direction at the same time. After 5 hours, how many kilometers does the bus travel more than the truck? (5 points)

The school bought some potted flowers. If you put 12 pots in each classroom, you can put 24 classrooms. If you put 16 pots in each classroom, how many classrooms can you put? (5 points)

3. A water tower is 23 meters high, and the height of a TV tower is 13 times that of the water tower. How many meters is this TV tower higher than the water tower? (5 points)

4. Uncle Li spent 800 yuan on Qian Qi, bought 16 bags of fertilizer, and left 80 yuan. How much is a bag of fertilizer? (5 points)

5. Naughty was reading a story book with a page of 18 1 and accidentally closed it. He only remembered that the sum of the two pages he had just read was 8 1. (8 points)

(1) What are the page numbers of the two pages that Naughty just finished reading? (3 points)

How many pages are left in this story book? (2 points)

(3) If you are naughty, how many days can you finish reading 30 pages a day? (3 points)