5.18×0.995.18÷0.99 0.89÷0.50.89×2
0.66
0.45÷0.5=
1÷0.25=
2.3+4.75=
0.5×4÷0.5×4=
0.8×1.25=
3-2.45=
0.49÷0.07=
(5.8-4)÷3=
27.3÷26= 5.98÷0.23= 34÷9.2≈
16.9+1.05÷0.7 8.5×5.67-7.5×5.67 63÷(4.86+5.64)×0.4