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

2.5×2＝	1﹣0.75＝	12×  ＝	+2＝
1.6÷0.4＝	+  ＝	63+  ＝	125%×8＝
4.6+5.04＝	0.6²＝