0.7×1.3={#blank#}1{#/blank#}

501×094=47094

5.01×0.94={#blank#}2{#/blank#}

{#blank#}1{#/blank#}     {#blank#}2{#/blank#}

3.21×23＝{#blank#}1{#/blank#}              3.21×2.3＝{#blank#}2{#/blank#}           32.1×2.3＝{#blank#}3{#/blank#}

32.1×0.23＝{#blank#}4{#/blank#}            3.21×0.23＝{#blank#}5{#/blank#}           321×0.023＝{#blank#}6{#/blank#}

2×1.001{#blank#}1{#/blank#}2            {#blank#}2{#/blank#}         0.2×0.8{#blank#}3{#/blank#}0.4×0.4

2.6060…{#blank#}4{#/blank#}2.601601……          12×0.65{#blank#}5{#/blank#}1.2×6.5

我发现了：（    ）