两个因数的积是4560，如果一个因数扩大10倍，另一个因数不变，积是45600．

0.89×0.12○0.89        4.05×1.01○4.05×0.99     6.7×0.98○6.7

6.09×1.3○6.09        5.15×3.3○51.5×0.33      18×0.35○0.35

6.3×2.04○2.04         4.8×7.5○7.5×4.8         3.9×1○1

{#blank#}1{#/blank#}      108÷ {#blank#}2{#/blank#}108     {#blank#}3{#/blank#}

1.82×0.9{#blank#}1{#/blank#}1.82            2.61÷0.09{#blank#}2{#/blank#}2.61

3.6×1.2{#blank#}3{#/blank#}3.6÷1.2         4.2÷0.5{#blank#}4{#/blank#}4.2×2