①0.89×1.60.89 2.47÷0.762.47
②5.39×105.39÷0.1 453÷1.2453
100×0.6= 11.5+9= 4.12÷4= 10-0.96=
0.1×0.8= 0.42÷6= 0.8×0.25= 0÷7.3=
0.81÷0.9= 3.1÷3.1= 4.6÷0.02= 5.5×0.2=
①27.8×56+27.8×44
②8.9×9.9
③5.8+19.34-3.63÷0.6
④32×0.125
⑤3.6÷[0.2×(5.4-4.6)]
⑥(8.01-0.45)÷(2.5+1.5×3)