34.6×0.5={#blank#}1{#/blank#}       0.346×5={#blank#}2{#/blank#}

3.46×5={#blank#}3{#/blank#}      3.46×0.05={#blank#}4{#/blank#}

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

31.5×0.9{#blank#}1{#/blank#}31.5            5.42÷0.9{#blank#}2{#/blank#}5.42     

0.98×1{#blank#}3{#/blank#}0.98             2.5×0.8{#blank#}4{#/blank#}2.5÷0.8   

 3.56÷1.01{#blank#}5{#/blank#}3.56              4.95÷1{#blank#}6{#/blank#}4.95