1. (2023四下·武昌期末) 直接写出结果。                                                                                          

11.7+2＝	8.5+0.9＝	1.3﹣0.9＝	46+54×0＝
5﹣2.7＝	3.65+2.45＝	48.3÷10＝	100÷25×4＝