4.4x0.25简便计算
4.4x0.25
=1.1×(4×0.25)
=1.1×1
=1.1
=1.1×(4×0.25)
=1.1×1
=1.1
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第1个回答 2018-02-09
=(4+0.4)×0.25
=4×0.25+0.4×0.25
=1+0.1
=1.1
=4×0.25+0.4×0.25
=1+0.1
=1.1