①1.3{#blank#}1{#/blank#}0.8     ②0.9{#blank#}2{#/blank#}1.2     ③1{#blank#}3{#/blank#}0.95

2.8{#blank#}1{#/blank#}2.6     7.9{#blank#}2{#/blank#}7.8

{#blank#}1{#/blank#}＜4.5＜{#blank#}2{#/blank#}      {#blank#}3{#/blank#}＜21.8 ＜{#blank#}4{#/blank#}     {#blank#}5{#/blank#}＜2.7 ＜{#blank#}6{#/blank#}

{#blank#}7{#/blank#}＜0.4＜{#blank#}8{#/blank#}      {#blank#}9{#/blank#}＜0.5 ＜ {#blank#}10{#/blank#}     {#blank#}11{#/blank#}＜9.6＜{#blank#}12{#/blank#}

0.8{#blank#}1{#/blank#}0.7           0.1{#blank#}2{#/blank#}2.2             1.4{#blank#}3{#/blank#}1.3

5分米{#blank#}4{#/blank#} 0.5米     12分米{#blank#}5{#/blank#} 0.8米     9分{#blank#}6{#/blank#} 0.1元