5.5×0.15.5÷10 9.9×6.970
3.6×1.2=
360×0.12=
4.32÷12=
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