7.8×4.1{#blank#}1{#/blank#}28                    0.96×54.8{#blank#}2{#/blank#}55 

0.092{#blank#}3{#/blank#}0.92                    87÷0.99{#blank#}4{#/blank#}84

960÷5{#blank#}1{#/blank#}960÷4     45×2{#blank#}2{#/blank#}21×45     63×21{#blank#}3{#/blank#}36×21

  {#blank#}1{#/blank#}0.56            {#blank#}2{#/blank#}           {#blank#}3{#/blank#}

47×0.99〇47

3.25×1.1〇3.25

7.86÷0.6〇7.86

0.78÷2.5〇0.78

5.6×0.13={#blank#}1{#/blank#}；

5.6×130={#blank#}2{#/blank#}；

{#blank#}3{#/blank#}；