32×40＝{#blank#}1{#/blank#}

32×400＝{#blank#}2{#/blank#}

32×4000＝{#blank#}3{#/blank#}

3.5×0.9{#blank#}1{#/blank#}3.5           0.46×1{#blank#}2{#/blank#}0.46          5.83{#blank#}3{#/blank#}1.01×5.83

2.7×0.9{#blank#}4{#/blank#}2.7×1.01     5.2×10{#blank#}5{#/blank#}5.2÷10        0.99{#blank#}6{#/blank#}0.99×0.99

先计算第①②这两个算式的积，再根据这组算式的规律，写出第⑤个算式及这个算式的积。

①3×0.8={#blank#}1{#/blank#}

②3.3×6.8={#blank#}2{#/blank#}

③3.33×66.8=222.444

④3.333×666.8=2222.4444

⑤{#blank#}3{#/blank#}