8.9×1.068.9 2.8÷0.932.8
16.7÷1.25÷0.816.7÷(1.25×0.8) 8.74÷0.978.74×0.97
50×0.46= 0.08×125= 0.6÷0.03= 0.125×8÷0.125×8=
0.72÷24= 70÷1000= 7.47+5.5-7.47+4.5=