如题所述
25×3.2+2.5×8
=25×3.2+25×0.8
=25×(3.2+0.8)
=25×4
=100
=25×3.2+25×0.8
=25×(3.2+0.8)
=25×4
=100
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第1个回答 2020-07-08
25*3.2+2.5*8
=2.5*32+2.5*8
=2.5*(32+8)
=2.5*40
=100
=2.5*32+2.5*8
=2.5*(32+8)
=2.5*40
=100