31.5×0.931.5 5.42÷0.95.42 0.98×10.98
2.5×0.82.5÷0.8 3.56÷1.013.56 4.95÷14.95
0.5×0.7=
70×0.6=
1÷0.25=
3-1.4=
2.5×0.8=
5.5÷5=
6.3÷0.9=
8.75+10.5=
0.72=
60×0.08=
1.6×3.2= 35.5÷5=
1.7×0.45≈(保留两位小数) 1.54÷3.9≈(保留两位小数)