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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 1851 10
4×8=
口诀：
7＋7＋7＋7={#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}.
4 × 1 = 3 × 2 = 6 × 2 = 1 × 8 =
4 + 1 = 3 + 2 = 6 + 2 = 1 + 8 =
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