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用简便方法计算 9999×2222+3333×3334
人气：262 ℃ 时间：2020-03-17 18:01:14
解答
9999×2222+3333×3334
=3333×3×2222+3333×3334
=3333×6666+3333×3334
=3333×(6666+3334)
=3333×10000
=33330000
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