1.63×0.91.63 5.32×0.15.32÷10 1÷0.991 2÷30.67
4.5×0.2= 10÷4= 8×1.25= 0÷8.4= 4.5÷6=
6.6÷11= 2.5×1.6= 0.84÷4= 4.2×0.5= 2.4×5=
①12.5×4.8
②28.5÷15×5.6
③21÷0.25÷0.4
④0.55×5.6+0.45×5.6
⑤24.6×18-24.6×8.
⑥20.9+8.5÷(5.2-3.5)