Hebei education printing plate fifth grade mathematics final examination questions c volume.
Knowledge and skills
1. I will argue.
The product of 0.03 and 0.04 is 0. 12. ( )
(2) 1.65 times of a number must be greater than this number. ( )
53.78 A decimal place is 53.8. ( )
(4)2.8? The quotient of 0.9 is 3 and the remainder is 1. ( )
(5) 1.998 is accurate to about 2 percentage points. ( )
(6) The product of two numbers must be the common multiple of these two numbers. ( )
2. I'll fill it out
( 1)3.2? 5=( )+( )+( )+( )+( )。
265 decimeter = () centimeter = () meter
5 tons 750 kg = () tons
2.05 kg = () kg () g
5 square meters 60 square centimeters = () square meters = () square decimeter.
(3) Magnifying 5.06 10 times is (), magnifying 100 times is (), magnifying 1000 times is ().
560 minus 10 is (), minus 100 is (), minus 1000 is ().
One factor is enlarged by 5 times, the other factor is enlarged by 20 times, and the product ().
(4) If three digits are composed of four, five and six, the possibility of forming an odd number is ().
(5) The perimeter of the rectangle is 1 1.6m, and the length is 3.7m The area of this rectangle is () square meters.
(6) When measuring a large area of land, () is often used as the unit, and China's land area is about ().
(7) =( ) =4 = =
0. 125= ? ( ) 1=( )
(8) The product of two prime numbers is 77, the greatest common factor of these two numbers is (), and the smallest common multiple is ().
(9) Divide a rubber band into two sections, one of which is five times as long as the other, so the longer section belongs to the original rubber band.
(10) fill in ○ >; ,< or =.
198? 0.8○ 198 95? 0.9○95 168? 1.5○ 168 132? 4.6○ 132
○ 3.33 ○ 3 ○0.625 ○0.004
3. Complete the table below as required.
The following questions should be calculated as simply as possible.
9.8+99? 9.8 1.25? 88 4.65? 32+2.5? 46.5+0.465? 430
5. Calculate the following questions.
144? 3.6+2.72 156? 0. 13? 1.2 14.82? 9.88? 0.87
34.96? 2.3? 0.25 1.6? [(8.42- 1.42)? 0.5]
6. a repeater 198.8 yuan, the price of TV is 9.6 times that of repeater. How much do you pay for five such TV sets? (Numbers are reserved as integers)
7. The shop bought 5 boxes of apples and 8 boxes of pears. Each box of apples weighs 8.8 kilograms, and the weight of pears is 2.5 times that of apples. How many kilograms of pears did the shop buy?
8. The garment factory needs to process a batch of children's clothes. If each piece of cloth is 1.5m, the existing cloth can process 480 sets. If each set of cloth is 0. 1 m, how many sets of cloth can be processed?
9. Xiaoming pays 20. 1 yuan when he buys 3kg pears and 3kg apples, and Xiao Fang pays 1kg pears and 3kg apples * * */yuan. How much are apples and pears per kilogram?
Problems and thinking
1. Hongjia's electricity consumption last month was 78.5 kWh, and the price per kWh was 0.49 yuan. There are three people in the Honghong family. How much electricity does everyone pay on average? (Figures shall be kept to two decimal places)
2. Miss Li brought 1000 yuan to buy sporting goods for the school. He spent 227.5 yuan to buy five soccer balls first, and is going to use the remaining money to buy several blue balls at 30.9 yuan each. How many more blue balls can he buy? What other math questions do you ask?
3. A processing factory shipped a batch of steel pipes. Stack it in a trapezoid, with 6 above and 14 below. There are 9 floors from top to bottom. How many steel pipes are there in this batch?
4. Uncle Wang built a vegetable garden outside his own fence (as shown below). He measured that the fence was 22 meters long and 8 meters on one side. Can you find the area of the vegetable garden?
5. A playground in the principal's square, covering an area of 2,800 square meters. Due to the expansion, the width will be increased from 40 meters to 50 meters, and the length will remain unchanged. How many square meters has the playground area increased after the expansion?