3.12÷6={#blank#}1{#/blank#}

37.1÷0.25={#blank#}2{#/blank#}

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

0.264÷0.99{#blank#}1{#/blank#}0.264                  0.264÷1.01{#blank#}2{#/blank#}0.264

0.264÷0.99{#blank#}3{#/blank#}0.264×0.99        0.264÷101{#blank#}4{#/blank#}0.264×1.01

0.264÷0.99{#blank#}5{#/blank#}0.264÷1.01        0.264÷0.99{#blank#}6{#/blank#}0.264-0.01