1.3.05kg = () g.
2.9 km 56 m = () km
3.20 square meters and 3 square decimeters = () square meters = () square decimeters.
4. The writing of 8075 million tons is (), and the number in billions is ().
5.7.094 Keep two decimal places about () and one decimal place about ().
6. Enlarge 10.35 by 1000 times () and then reduce1000 times ().
7. The number consisting of 300,000 and 405 tens is (), which is read as: () Rounded to ten thousand places is about ().
Second, the oral problem (6 points for each small question *** 12 points)
1.89÷ 100= 0.82+0.08= 73× 1=
0.63× 10= 4÷ 10= 17÷ 1000=
2.0.56+0.4= 1.25× 100= 5.6+99=
100÷25= 1-0.93= 90-0.9=
Third, simple calculation (5 points for each small question *** 25 points)
1.794- 198
2.68×25
3.6756- 193-207
4.72× 125
5.97×360+3×360
Four, the calculation problem (5 points)
428×(3080- 1980)-742
Verb (abbreviation of verb) written narrative question (5 points for each small question *** 10)
1.978 minus 5 times 126. What's the difference?
2. The quotient of1560 divided by a number is 26. Did you find this number?
List the equations whose unknown number is x, and then solve them.
Six, application problems (1-2 7 points for each question, 8 points for the third item, 22 points for the * * *)
1. A clothing factory produced 850 suits in five days. According to this calculation, how many suits are produced a month? (30 days a month)
2. The store delivered 8 baskets of apples, 12 baskets of pears, with 38kg apples and 42kg pears in each basket. How many kilograms of fruit did this shop ship?
3. A construction site needs 240 tons of cement, which will be transported by five vehicles. Each car carries 3 tons at a time. How many times does it take to transport it? (There are two comprehensive solutions)
1. Clever calculation of "magic machine": (4 1%)
1. Numbers written directly: (8 points)
5.4 + 8.5= 150×6= 6.78+0.23= 10-6.5+3.5=
7.5× 100= 60×50= 287- 199= 0.3× 125×8=
1 - 0.09= 927÷9= 60÷ 100= 6.3×99+6.3=
0.6 1×99≈ 6.9×8. 1≈ 7 1.9÷8.9≈ 3.5+0.78+6.5=
2. Column vertical calculation (the third question should be checked): (7 points)
① 39.8 + 14.72 ② 12.05 – 8.39 ③ 50.4 – 19.64
3. Find the unknown X: (8 points)
X÷70 = 140 X×25 = 400 3.06+X = 30 X–0.85 = 0.85
4. Use your favorite method to calculate: (12 points)
① 4.7+7.69+5.3+2.3 1 ② 53.78- 13.6-37.4+6.22 ③ 57× 10 1 - 57
④ (520 + 480)÷50×4 ⑤ 400-( 1300÷65+35) ⑥ 60-(2 1.5-8.8)+7.3
5. List and calculate: (6 points)
① divide the difference between 585 and 265 by the sum of 39 and 4 1, ② divide 5292 by the quotient of 36, and 1470 and 1386.
What is the quotient? What is the product?
2. Occupancy rate: (17%)
1. The results of the fifth census were announced: China's total population reached1295.33 million, with () writers. The number rewritten as "10000" is (), and the mantissa after omitting "1 billion" is about ().
2. A number consisting of 5%, 2% and 8% is written as () and read as (), which means ().
3.0.65 Change the three digits after the decimal point to (), which is subject to the decimal point ().
4.9.9549 The reserved integer is about () and the decimal place is about ().
Keeping two decimal places is about ().
5. Fill in ">" or "=" in "0" and "0".
5.072 05.27 5.8 05.800 0.8 hectares 0.79 million square meters
6.6.24 square meters = () square decimeter 1 hour 40 minutes = () minutes.
4.2 m = () m () cm 8.04 t = () t () kg
7. Arrange the following figures in descending order:
0. 1 0.056 0.506 0.56 0.065
8. Enlarging 0.003 100 times is (); 5.6 minus () times is 0.056.
9. Statistical table of tree species collected in various grades of a primary school: Please look at the pictures and answer the following questions:
(1) Grade () is the most used;
Grade () is the least.
② The fifth grade collected () kilograms more than the second grade;
Grade one is () kilograms less than grade three.
(3) the average income per grade is () kilograms.
The average price of these four books is () yuan.
10.② The school library bought 8 books of each kind, which was RMB ().
(3) If these four books count as one set, 800 yuan can buy at most () sets.
Loosen your wrist, pack your things, and then open the second page!
Three. "Animation" world: (6%)
(1) Draw an angle of 135. (2) Draw a parallelogram with a base of 3 cm and a height of 2 cm.
(3) The following is an isosceles triangle:
(1) The top angle is () degrees (rounded to the nearest ten degrees).
Length of each waist () cm (rounded to the whole cm);
(2) From the vertex to its bottom.
4. "Lucky" choice: [Choose the serial number of the correct answer and fill in brackets] (7%)
1. For the following numbers, only one zero is read when reading ().
① 100.07 ② 1.005 ③ 2.0500
2. Move the decimal point two places to the right and then three places to the left. This decimal point ().
(1) size unchanged; ② magnification 10 times; ③ Reduce 10 times; ④ Decrease 1000 times.
3.79× 99+79 = 79× (99+1) = 79×100 = 7900, simple operation according to multiplication ().
① Distribution Law ② Exchange Law ③ Association Law
4. A triangle has at least () acute angles and at most () obtuse angles.
① 1 ② 2 ③ 3
5. The following years are not leap years ().
① 2000 ② 1990 ③ 2004 ④ 2040
6. The following number with 6 after the integer is ().
① 5.499 ② 5.5 ③ 6.49 ④ 6.5
Step into life and solve problems:
There are many problems in life related to mathematics. Can you solve these problems? I believe you can do it!
(a) Only formula, excluding calculation: (6%)
1. After installing water-saving valves in residential buildings, each household saves 2 tons of water per month on average. According to this calculation, how many tons of water can 72 households save a year? Column type:
Orchard workers prune fruit trees. Seven workers pruned 168 trees in three days. How many trees can each person prune every day?
Column type:
3. The school bought five footballs and five volleyballs, which cost 275 yuan and 2 10 yuan. How much is football more expensive than volleyball? Column type:
There are 5/kloc-0 cows and 565438 sheep on the farm. A cow eats 70 kilograms of hay every week and a sheep eats 35 kilograms of hay every week. How many kilograms of feed does this farm prepare every week?
Column type:
(2) Expanded application: (23%)
1. Miss Wang bought two reference books. Primary school mathematics teaching guide 12.36 yuan, more mathematics manuals than primary schools.
Mathematics teaching guidance is 4.25 yuan more. Teacher Wang gave it to 50 yuan, a salesman. How much should I get back?
2. Xiaohua has 46 stamps, Xiaoming has more stamps than Xiaohua 16, and Xiao Qiang's stamps are equal to Xiaoming's.
Three times the total number of tickets. How many stamps are there in Xiao Qiang?
A factory used to use 468 tons of water every month. After carrying out water-saving activities, the original annual water consumption can now be
How many tons of water will be saved by using 1 month?
There are two expressways between 4. AC and city. It takes 6 hours for the bus to leave from City A and pass through City B to City C. ..
(1) How many kilometers per hour?
B cheng
(2) When returning, the speed is 6 kilometers per hour, C city.
How long will it take to get back to city A at least? Acheng
(3) Now it is planned to build a new expressway connecting B city and AC highway. How to design the shortest distance? (graphic representation)
Students, have you finished all the questions? Can we check it again? I believe you will be able to hand in a satisfactory answer sheet!