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题型:填空题 题类:常考题 难易度:容易
8的乘法口诀 1824 10
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}
7×{#blank#}1{#/blank#}=14
{#blank#}2{#/blank#}×3=21
{#blank#}3{#/blank#}×7=7
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