1. (2023·通榆) 直接写出得数。                                                                                                     

11×40＝	810÷30＝	÷  ＝	20×498≈	9.8÷0.01＝
2.05﹣0.5＝	8×25%＝	2﹣  ＝	÷5＝	4.58+5.42＝