5.48×0.55.48÷0.5 1.56×1001.56÷0.01
8-3.13= 7a×0= 2.4×5= 1.5×5.6=
6.8÷0.4= 4b-3b= 10÷0.2= 1.7÷0.01=
数量关系式: