题文
怎样简便怎样算.
8.2×99+8.2 4.8×0.25 0.78×9.9
8.96×0.32﹣0.96×0.32 2.6×1.9÷2.6×1.9.
怎样简便怎样算.
8.2×99+8.2 4.8×0.25 0.78×9.9
8.96×0.32﹣0.96×0.32 2.6×1.9÷2.6×1.9.
试题篮
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