1, 4,350,620,000 is written as (), and the mantissa after omitting 100 million is about () million.

2. A seven-digit number, the highest digit is (), and the highest digit of a number is one billion digits, which is () digits.

3, 450 minus 50 in a row, minus () times to get 0.

4. Find a regular supplier.

792÷24=33 396÷ 12=( ) 1584÷48=( )

5, 7 □ 8695000 ≈ 800 million, □ can be filled in ().

6, from a point outside the straight line, respectively, draw a vertical line segment and diagonal line to the known straight line, in which () is the shortest.

7. The divisor is known as 17 and the quotient is 6. When the remainder takes the maximum value, the dividend is ().

True or false (type ""correctly and ""incorrectly. (10)

1, draw a straight line of12cm. ( )

There are 350,000 students in the fourth grade. ( )

3, 0 divided by any nonzero number is 0. ( )

4.40809 100 ≈ 408 10,000.( )

5. An angle consists of two rays. ( )

Third, multiple-choice questions (fill in the serial number of the correct answer in brackets). (10)

1, four digits divided by two digits, the quotient is ().

(1) two digits (2) three digits (3) may be two digits or three digits.

2, 1 fillet = () right angle.

( 1)4 (2)3 (3)2

3. You can draw a straight line () after two o'clock.

(1)122③ Numerous articles.

4, the writing of three hundred and four thousand ().

( 1)3034000 (2)3304000 (3)3340000

5. The largest five digits are greater than the smallest four digits ().

( 1)99000 (2)989999 (3)99900

Fourth, the calculation problem. (30 points)

1, write directly. (6 points)

40×8= 1 1×60= 9×50 = 630÷3=

590-200= 72÷ 12= 48×80= 450÷50=

2×4×5= 60×0×7= 102+24= 360+90=

2. Column vertical calculation. (12)

125×45= 54×89 3276÷84 86 10÷24

3. Column calculation. (12)

(1) 2 133 Subtract the difference of 20 1 and divide by 23. What is the quotient?

(2) What is the product of the multiplication of the two largest two digits?

(3) What is the sum of 750 divided by 15 and 135?

Fifth, drawing questions. (10)

1. Draw a rectangle with a circumference of 14 cm. After drawing, mark the data on the map and calculate its area. (6 points)

2. Draw an angle of 1200. (4 points)

Sixth, the application problem. (24 points)

1. The school beautified the campus and bought a batch of Chinese rose flowers. If you plant 30 trees per row, you can plant 25 rows. How many rows can you plant if you change it to 15 trees per row? (6 points)

Xiaoming raises 9 times as many chickens as geese, with 45 geese. How many more chickens are there than geese? (6 points)

3. A factory needs to produce 3000 parts, 750 parts were produced in the first 6 days, and the rest will be completed in 15 days. How many parts are produced on average every day? (6 points)

4. A bus travels 320 kilometers from A to B in 4 hours, and there are still 480 kilometers from B. According to this calculation, how many hours does the bus need to travel from A to B? (6 points)

5. The following is a statistical table of tree planting in three grades of a primary school. (7 points)

Grade four, grade five, grade six

March 1995 100

April10511010

Complete the following table according to the statistical information and answer the following questions. (2 points)

Statistical table of planting trees in a primary school in spring

(1) Which grade plants the most trees in spring? ( 1)

(2) I planted () trees in March of grade three, and more trees were planted in April than in March. (2 points)

(3) What other questions can be asked? Try to solve it. (2 points)

May I?