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4.6Ã201-4.6
=4.6Ã201-4.6Ã1
=4.6Ã(201-1)
=4.6Ã200
=920
=4.6Ã201-4.6Ã1
=4.6Ã(201-1)
=4.6Ã200
=920
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第1个回答 2014-01-04
4.6×201-4.6
= 4.6×(201-1)
=4.6×200
=920
= 4.6×(201-1)
=4.6×200
=920