Fill in the blanks. (0.5 points for questions 4 and 5, 65438+ the rest 0 points, ***22 points)
1, a number consists of eight 0. 1, seven 0.0 1 and five 0.00 1. This number is (), pronounced ().
2, 0.45 () one percent; Four tenths is ().
The decimal point of 2.6 1 is (), which is expanded to () times the original number.
4, 4 tons of 20 kg = 6 cm = () tons () meters
0.7 square meters = () square decimeter =()90 points
Fill in "
0. 1.09 0.5 1.509 2.4× 100.240 ÷ 100 803600 0803600.
The base angle of an isosceles triangle is 40 degrees, and the top angle is () degrees. If its top angle is 50 degrees, then its bottom angle is () degrees.
7, () 10 times is 9.6; 768 is () times that of 24.
8. The approximate number of a two-digit decimal after rounding is 3.8, and the maximum value of this decimal is () and the minimum value is ().
9. Xiaoming is in the direction of 30 northwest of Xiao Li 100 meters, which can also be said to be the direction of (); Then the distance between Xiaoli and Xiao Ming () is ().
10,9.9526 The reserved integer is (), one decimal place is (), and two decimal places are ().
Judge. (Mark "√" for the right and "×" for the wrong) (5 points)
Numbers greater than 0.4 and less than 0.5 are only 1. ( )
2. An equilateral triangle must be an acute triangle. ( )
3. Integer is bigger than decimal. ( )
4,9.995 is accurate to about 10.00. ( )
Xiaohong's height 1.35 decimeter. ( )
The right person. (Put the serial number of the correct answer in brackets). (5 points)
1, in the following figures, the size unchanged after removing 0 is ().
a、 1.05 B、400 C、3 1.00
A triangle, its two sides are 6 decimetres and 7 decimetres respectively, and the other side may be () decimetres.
a、2 B、 1 C、 15
0.056 contains () 0.00 1.
a、0.56 B、56 C、560
In order to indicate the trend of stock price rise and fall, () is often used.
A, bar chart b and line chart c are all incorrect.
5. Plant trees along the periphery of the circular playground, one tree every 4 meters and 30 trees in a row. The circumference of this playground is ().
a、 120m b、 124m c、 1 16m。
Do the math. (37 points)
1, a number written directly. (4 points)
4.7+0.03= 0.05× 10= 7.5-5= 42.75÷ 1000=
7.65÷ 10= 1-08= 5-2.4= 7+2.0 1=
Rigidity calculation. (8 points)
39. 15+28.4 95.6- 10.009 7.85+0.92 90-9. 18
Calculate in decimal. (6 points)
10 kg 70g -9 kg 700g 9 m2 +2 m2 5 sq. decimeter+-
How to calculate it is simple. (15)
10-0.54-0.46 (280+260)÷(2 16÷ 12) 72× 125
75+360÷(20-5) 450÷5÷9 9.5+4.85-6. 13
Column calculation. (5 points)
① The sum of 3.5 and 6.5 is multiplied by the difference between 4.6 and 0.46, and the product of 2 16 multiplied by 2 1 is less than 400?
What is the product?
Do the questions as required. (2 points)
1, draw the height of the triangle. 2. ∠ 1= () degrees in the drawing.
3. The number of gold medals won by China delegation in the Asian Games topped the list for seven consecutive years. The following is a statistical chart of the gold medals won by the China delegation at the 7th-15th Asian Games. (6 points)
① The number of gold medals won by the China delegation in the 5th Doha Asian Games was 15 more than that in the 4th Asian Games. Complete the statistical chart above.
② The China delegation won the most gold medals in () Asian Games, while () won the least gold medals.
③ The number of gold medals rose fastest from () to (), and fell fastest from () to ().
What do you think after reading this statistical chart?
.
4. Draw on the bitmap as required. (3 points)
Parallelogram trapezoid isosceles triangle
Solve the problem. (20)
1. The big clock in the square rings five times at five o'clock and once every eight seconds. 12 dozen 12 How long will it take?
2. A piece of wood is 10 meter long and divided into five sections on average. It takes 8 minutes to saw the next section, and how many minutes does it take to see the next section?
There is a square flower bed in front of the school building. There are 8 pots of flowers on each side of the outermost layer of this flower bed. How many pots of flowers are put on the outermost layer?
The fruit shop sent 8 boxes of apples and 8 boxes of bananas. Apples are 25kg per box and bananas are18kg per box. How many kilograms of fruit did a * * * send?
Xiaoli's family buys a box of milk and a bag of soybean milk every day. Milk costs 2.40 yuan per bag, which is more expensive than soybean milk 1.80 yuan. How much does it cost for Xiaoli's family to buy milk and soybean milk a week?