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第1个回答 2019-12-19
2.75✘10.1
=2.75x(10+0.1)
=2.75x10+2.75x0.1
=27.5+0.275
=27.775
=2.75x(10+0.1)
=2.75x10+2.75x0.1
=27.5+0.275
=27.775
第2个回答 2019-12-19
2.75×10.1
=2.75×(10+0.1)
=2.75×10+2.75×0.1
=27.5+0.275
=27.775
=2.75×(10+0.1)
=2.75×10+2.75×0.1
=27.5+0.275
=27.775