直接写出得数。                                                                                                             

2.9×0.5＝	7.8÷0.2＝	9.9÷11＝	6÷4＝	0.28÷0.7＝
1÷0.02＝	1.5×70＝	0.8×100＝	84÷2.1＝	0.04×0.7＋0÷50＝