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Seek the final examination questions of sixth grade mathematics in Shenzhen primary school
Shenzhen Su Jiaoban sixth grade mathematics mid-term exam next semester.

First, fill in. (65438+ 0 points per grid, 20 points)

1 and 30098400 are pronounced as (), and rounded to ten thousand digits is ().

2. In 1 ~ 15, the ratio of all even sums to all odd sums is (), and the ratio of all prime sums to all synthetic sums is ().

3.0.8=( ) :( ) = = 8÷( )=( )%

The volume of the cone is 76 cubic centimeters, and the bottom area is 19 square centimeters. The height of this cone is () cm.

5. If 4a=5b, then a: b = ().

6. The commonly used statistical charts we have studied are (), () and ().

7. In a right triangle, the ratio of two acute angles is 1: 2, which are () degrees and () degrees respectively.

You can choose four numbers from the divisor of 8. 12 to form a ratio. Please write two groups with different proportions: () and ().

9. If the distance between Party A and Party B is 4.8 cm on the map of 1: 500000, then the actual distance between the two places is () kilometers.

10. The radius of the bottom surface of the cylinder is 2 cm, and the side surface is exactly square. The volume of this cylinder is () cubic centimeters.