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2002.13*13/(78/12)*50简便计算

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/26 13:09:02
2002.13*13/(78/12)*50简便计算
2002.13×13÷(78÷12)×50
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