Ten-twenty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-

Ten-twenty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty-thirty. -ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten-ten- "Ten-twenty-thirty" means 10, 20, 30, 40, 50, 60, 70, 80, 90.

Specific pronunciation:

1, niàn twenty.

2.30.

3. It's 40.

4. Wei Wei fifty.

5, round yuán sixty.

6. Enter Jin 70.

7. withered kū? Eighty.

9.“huà 90”。

Symbol:

Scientific notation is a counting method. Numbers are expressed as a and the n power of 10 (1 ≤ A

For example:199714000000 =1.99714×1013. Calculator or computer expresses the power of 10 as e or e, that is,1.99714e13 =19971400000.