0.48×0.90.48 1.8×1.011.8
2.17÷0.992.17 5.17÷1.575.17
3.3÷0.3= 4×0.25= 1.65+0.25= 7.7﹣1.1=
6.36﹣2.6= 25÷5= 5×5÷5×5 1.7+3.3×0.2