口算下面各题．
1.4×0.5×0.8＝{#blank#}1{#/blank#}
(5.3＋2.7)×2＝{#blank#}2{#/blank#}
1.25×2×0.4＝{#blank#}3{#/blank#}
(1.3＋2.5)×2＝{#blank#}4{#/blank#}
1.2×0.5×0.5＝{#blank#}5{#/blank#}
0.25×2×8＝{#blank#}6{#/blank#}
0.2×0.2×0.2＝{#blank#}7{#/blank#}
1.5×4×0.05＝{#blank#}8{#/blank#}
