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2002.13*13/(78/12)*50简便计算
2002.13×13÷(78÷12)×50
人气:311 ℃ 时间:2020-02-05 02:38:49
解答
2002.13×13/(78/12)×50
=20020.13×[(13×12/78)×50]
=2002.13×[(78×2/78)×50]
=2002.13×[2×50]
=2002.13×100
=200213
2002.13×13÷(78÷12)×50
=2002.13×[13×12÷78×50]
=2002.13×[78×2÷78×50]
=2002.13×[2×50]
=2002.13×100
=200213
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