7.3×0.8{#blank#}1{#/blank#}7.3+0.8         1.24×3.5{#blank#}2{#/blank#}1.24

8.7÷0.85{#blank#}3{#/blank#}8.7             7.85+0.25{#blank#}4{#/blank#}78.5+2.5

× {#blank#}1{#/blank#}             ÷ {#blank#}2{#/blank#}

÷ {#blank#}3{#/blank#}             6× {#blank#}4{#/blank#}6÷

× {#blank#}5{#/blank#}            （48+12）× {#blank#}6{#/blank#}48+12×

1×0.9{#blank#}1{#/blank#} 1             0.1×5.6{#blank#}2{#/blank#}0.56           7.66÷0.99{#blank#}3{#/blank#} 7.66  
3.25×1.2{#blank#}4{#/blank#}3.25     6.71÷0.58{#blank#}5{#/blank#} 6.71     5.6×0.9{#blank#}6{#/blank#}5.6÷0.9