如题所述
原式=2.5×0.6-0.6×3×0.5=0.6×(2.5-1.5)=0.6×1=0.6。
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第1个回答 2022-06-24
2.5×0.6—1.8×0.5 =2.5×0.6-3×0.6×0.5 =2.5×0.6-1.5×0.6 =(2.5-1.5)×0.6 =1×0.6 =0.6
第2个回答 2021-03-24
2.5×0.6-1.8×0.5
=2.5×0.6-0.6×1.5
=0.6×(2.5-1.5)
=0.6
望采纳,谢谢
=2.5×0.6-0.6×1.5
=0.6×(2.5-1.5)
=0.6
望采纳,谢谢
第3个回答 2022-06-25
简便计算是
0.5x(5x0.6-1.8)
=0.5x(3-1.8)
=0.5x1.2
=0.6
0.5x(5x0.6-1.8)
=0.5x(3-1.8)
=0.5x1.2
=0.6