1.2元{#blank#}1{#/blank#}1元2角   3.50元{#blank#}2{#/blank#}5.30元     0.88元{#blank#}3{#/blank#}0.80元

0.28{#blank#}4{#/blank#}0.3         1.2{#blank#}5{#/blank#} 1.12           2.2{#blank#}6{#/blank#}2.02

1.6{#blank#}7{#/blank#}6.1          0.5{#blank#}8{#/blank#}0.56

①4.35×1.02{#blank#}1{#/blank#}4.35               3.98÷1.2{#blank#}2{#/blank#}3.98           0.98×0.98{#blank#}3{#/blank#}0.98

②40.5÷0.8{#blank#}4{#/blank#}40.5                8.24×1{#blank#}5{#/blank#}8.24             3.9÷0.99{#blank#}6{#/blank#}3.9

4.05{#blank#}1{#/blank#}4.006        7.29{#blank#}2{#/blank#}72.9         80.02{#blank#}3{#/blank#}80.020

7.7{#blank#}4{#/blank#}8.7            3.45{#blank#}5{#/blank#}3.54          0.1{#blank#}6{#/blank#}0.099

20厘米{#blank#}7{#/blank#}0.2米      1.3吨{#blank#}8{#/blank#}130千克    3元5角{#blank#}9{#/blank#}28角

0.755 4.233

 1÷6