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题型:单选题 题类:常考题 难易度:容易
用2--5的乘法口诀求商1748 10
七七{#blank#}1{#/blank#} 八八{#blank#}2{#/blank#} {#blank#}3{#/blank#}七二十八
{#blank#}4{#/blank#}七十二 六{#blank#}5{#/blank#}四十八 {#blank#}6{#/blank#}九四十五
× = × = × =
÷ = ÷ = ÷ =
{#blank#}1{#/blank#}×4<35 {#blank#}2{#/blank#}×5<46 26>7×{#blank#}3{#/blank#}
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