1. (2019五上·江干期中) 直接写得数。
0.63÷0.7=              1.8×0.5=                10-0.19=

10÷0.1=                 1÷0.25=                 1.7×6=

0.3×0.9÷0.3×0.9=                                 1-1÷8=