9.86×0.999.86 5.7÷1.015.7 1.73×2.92.9×17.3
1.5×0.2= 3.2÷0.4= 0.26×100= 0.63÷0.03=
0×1.35= 6.8÷4= 0.1÷0.01= 7.2×0.1=
9.8-8.9= 1.25×4= 18÷0.01= 6.5×0.1÷6.5×0.1=