16×3= 25×4= 620+78= 130×8=

18×20= 700×50= 42×5= 280÷7=

120×7= 1 1×40= 60×90= 24×60=

Second, vertical calculation. (16)

73×62 540×60

306×25 820× 14

Third, fill in the blanks. (***20 points)

(1) 30400000 is pronounced as:, and the number in "ten thousand" is rewritten as.

(2)603.50 1 100 million: the mantissa after 100 million digits is rounded off and omitted.

(3) The smallest natural number is and the largest eight-digit number is.

(4) Fill in "

63750 ○ 74300 1080600 ○ 890450

578600 ○ 576800 980009000 ○ 980000900

5] As shown in the right figure, it is known that ∠ 1=30○,

Then ∠2=,

∠3= 。

[6] 1 fillet = right angle = right angle.

(7) There is a trapezoid on the right.

Triangle.

(8) Estimation: 68×102 ≈198× 21≈.

One factor is 60 and the other is 88. Their product is.

You can spell the degree and the obtuse angle of the degree with a triangular ruler.

Judgment: (Mark "√" for the right and "×" for the wrong) (4 points)

The (1) line segment has only one endpoint. ……………………………………( )

A rectangle is a special trapezoid. …………………………………( )

(3) Parallelogram has countless heights. ……………………………( )

The number of 660 is 6000600. ………………( )

5. Choose the serial number of the correct answer and put it in brackets. (6 points)

(1) What is not an acute angle is ().

① 89○ ② 9 1○ ③ 30○

(2) The approximate value of which of the following numbers is 670,000 ()

① 675000 ② 663000 ③ 666000

(3) Which of the following statements is wrong ().

① Two groups of opposite sides of parallelogram are parallel respectively. ② An isosceles triangle has at least two acute angles.

③ Parallel lines may extend indefinitely or intersect.

6. Measure and draw a picture. (8 points)

(1) Measure the degree of each corner in the diagram.

(2) Draw the vertical line and parallel line of the straight line passing through point A respectively.

Seven, stationery stores sell several kinds of stationery in a month as follows, please fill in the appropriate figures in the blank. (9 points)

Name Unit Price/Yuan Quantity Total Price/Yuan

Notebook 2 480 (this)

Calculator 25 20 (Taiwan Province)

Pen 3 (branch pipe) 360

Eight, solve the problem. (25 points)

1. Lions in Haicang Wildlife Park eat 35 kilograms of food a day. How many kilograms of food do they eat in October?

2. A story book has 193 pages. If you smile and read 8 pages a day, can you finish it in 25 days?

The driver, Uncle Wang, set out from Xiamen to deliver goods in Fuzhou. The speed was 60 km/h in the first three hours and 50 km/h in the last two hours. How many kilometers did Uncle Wang drive?

Liang Xiao wants to cut the biggest square from the rectangular paper below. What graphics are left? How many centimeters is its circumference?