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888×120+222×520=?简算 既简单又方便 求答与解题思路和算式
人气:185 ℃ 时间:2020-04-08 17:53:41
解答
888×120+222×520
=222×4×120+222×520
=222×480+222×520
=222×(480+520)
=222×1000
=222000
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