25×5=125               230×40=9200

25×20={#blank#}1{#/blank#}          230×20={#blank#}2{#/blank#}

25×50={#blank#}3{#/blank#}          230×10={#blank#}4{#/blank#}

25×40= {#blank#}5{#/blank#}           230×4={#blank#}6{#/blank#}

3.5×1.02{#blank#}1{#/blank#}3.5                     8.7÷0.99{#blank#}2{#/blank#}8.7

5.45÷0.13{#blank#}3{#/blank#}54.5÷1.3          0.9×0.78{#blank#}4{#/blank#}0.78÷0.9

157×0.9{#blank#}1{#/blank#}157           2.8÷0.6{#blank#}2{#/blank#}2.8

{#blank#}3{#/blank#}         {#blank#}4{#/blank#}