Final review is a powerful guarantee for getting good results in the final exam. First of all, we should pay attention to it ideologically and not be careless. Because the final exam covers a wide range. Next, collect a set of sixth-grade math final papers, I hope everyone can practice seriously!
First, think carefully and fill in carefully. (24 points)
The reciprocal of 1 and 0.25 is (), the reciprocal of the smallest prime number is (), and the reciprocal of ().
2、? The spring pool is full, and spring grass grows in spring. Spring people drink spring wine and spring birds make spring scenery. ? In poetry? Spring? The frequency of Chinese characters accounts for ()% of the total number of words in the whole poem.
3: The simplest integer ratio is (), and the ratio is ().
4、 = =( ): 10 = ( )%=24? () = () (decimal)
5. You are in the () row and () column of the classroom. Use a pair of numbers to indicate that your position is (,).
6.0.523, 0.53% and 0.5, the largest number is (), and the smallest number is ().
7. Xiaoming has 50 cents and 1 cent * * 18 coins in his piggy bank, and one * * has 5 yuan. Then there are () coins with 50 cents and () coins with 1 minute.
8. The following is a statistical chart of sixth-grade students' eyesight in our school.
(1) There are 76 people with normal vision and () people with myopia.
There are () people with pseudomyopia.
(2) Students with pseudomyopia are less than those with normal vision.
(3) The ratio of students with normal vision to students with abnormal vision is ().
9. According to China's regulations, if an individual's monthly income exceeds 2,000 yuan, the individual income tax will be paid at the rate of 5%. Xiaohong's mother earns 2360 yuan a month and should pay personal income tax () yuan a month.
10. In math class, Xiaolan cut a piece of circular paper with an area of 9.42 square centimeters. You can guess that she should prepare at least () square centimeters of paper.
Second, you can tell the truth from the truth with a sharp eye. (5 points)
1、 15? (5+ )= 15? 5+ 15? =3+75=78。 ()
2. A ton of coal was used, and it was shipped here again. Now the coal is still 1 ton. ()
3. Two circles with the same radius have the same shape and size. ()
Xiaohua's weight is equal to Xiaoming's, and Xiaohua is heavier than Xiaoming. ()
5. The picture on the right is axisymmetric. ( )
Iii. Happiness A, B and c. (5 points)
1. The original price of a commodity is 200 yuan. After the price increases by 15%, the price decreases by 15%. The current price is () times the original price.
A, higher than B, lower than C, equal to D, incomparable.
2, grandpa cut a wire into two sections, the first section is meters long, the second section accounts for the whole length, then ()
A, the first paragraph is B, the second paragraph is C, and the two paragraphs are as long as D, so it is impossible to judge.
3, a cup of salt water, salt accounts for the proportion of salt water, the ratio of salt to water is ()
a、3: 17 B、 17:3 C、3:20 D、20:3
4. The circular flower bed has a radius of 3m, and a gravel road with a width of 1 m is paved around the flower bed, with an area of () m2.
a、28.26 B、50.24 C、 1.98D、2 1.98
Last year, the price of gasoline per kilogram was in 5.5 yuan. Compared with the same period last year, the price of gasoline has increased by 10% this year. Are you right? Increase? The understanding of this word is ().
What's the sales price this year? B, what was the selling price last year?
C, the price this year is a few percent higher than last year, and last year's price is a few percent lower than this year.
Fourth, solve the problem. (20 points)
1. How many square centimeters of iron sheets do you need to make a 10 cylindrical ventilation duct with a bottom circumference of 30cm and a length of1.2m?
2. A pile of coal is planned to burn 0.5 tons every day, which can last for 40 days. If it burns less than 0. 1 ton every day, how many days can it last? (Use proportional solution)
3. There are a pile of conical sand piles on the construction site, with a height of1.5m and a bottom diameter of 6m. If each cubic meter of sand weighs about 1.7 tons. How many tons does this pile of sand weigh? (accurate to 0. 1 ton)
4. The original planned green area of Xinhua Community is 1.8 hectares, and the actual green area is 2.7 hectares. What percentage has the actual green area increased compared with the original plan?
5. On the map with the scale of 1:6000000, it is measured that the road between A and B is 5 cm long. How many hours does it take for a car to travel from city A to city B at an average speed of 60 kilometers per hour?
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