20.2-2.23= 0.08×0.5= 5.05÷5.05= 9.1÷1.3=
36.52÷1= 3.05×6= 8-3.58= 12.5+0.8=
0.16×30= 0.105÷0.05= 0.25×2.4= 36.18÷12=