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题型:填空题 题类: 难易度:困难
【实验班提优训练】数学二年级上 第6单元 解决问题(2)
6×{#blank#}2{#/blank#}=18
4 × 1 = 3 × 2 = 6 × 2 = 1 × 8 =
4 + 1 = 3 + 2 = 6 + 2 = 1 + 8 =
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