1.8×2{#blank#}1{#/blank#}2    1.8×0.2{#blank#}2{#/blank#}1.8

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

3.28×0.9{#blank#}1{#/blank#}3.28      3.28×1.005{#blank#}2{#/blank#}3.28        32.8×0.1{#blank#}3{#/blank#}3.28

4.5{#blank#}4{#/blank#}45×0.1          4.5×0.5{#blank#}5{#/blank#}4.5             4.5×1.3{#blank#}6{#/blank#}4.5

①0.56×37={#blank#}1{#/blank#}

②5.6×0.37={#blank#}2{#/blank#}

③560×0.037=3.7×{#blank#}3{#/blank#}

9.6×2.4={#blank#}1{#/blank#} 230.4÷24={#blank#}2{#/blank#}