3.9{#blank#}1{#/blank#}3.4        5.7{#blank#}2{#/blank#}9.1         0.6{#blank#}3{#/blank#}0.93       8角{#blank#}4{#/blank#}0.8元

2{#blank#}5{#/blank#}2.1           5.3{#blank#}6{#/blank#}5           0.7{#blank#}7{#/blank#}1.2         4米5分米{#blank#}8{#/blank#}4.7分米

5.2{#blank#}9{#/blank#}5.20      2.5{#blank#}10{#/blank#}2.05      0.4{#blank#}11{#/blank#}0.40       3.5元{#blank#}12{#/blank#}3元7分 

8.91米{#blank#}1{#/blank#}8.19米     10米1分米{#blank#}2{#/blank#}10米10厘米      1元{#blank#}3{#/blank#}0.99元

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

{#blank#}1{#/blank#}>{#blank#}2{#/blank#}>{#blank#}3{#/blank#}>{#blank#}4{#/blank#}