756×0.9{#blank#}1{#/blank#}756          4.25×1.1{#blank#}2{#/blank#}4.25      2.7×0.87{#blank#}3{#/blank#}87×0.27
5.65÷0.45{#blank#}4{#/blank#}5.65        49.5÷1.1{#blank#}5{#/blank#}49.5      5.04÷6{#blank#}6{#/blank#}1

5.03×0.99{#blank#}1{#/blank#}5.03            8.1×0.96{#blank#}2{#/blank#}0.81×9.6

7.48÷0.02{#blank#}3{#/blank#}7.48            3.2×10{#blank#}4{#/blank#}3.2÷0.1

7580万{#blank#}1{#/blank#}7亿            250×25{#blank#}2{#/blank#}260×24

144÷12{#blank#}3{#/blank#}432÷36    315÷45{#blank#}4{#/blank#}315÷5×9