
求简便计算答案
展开全部
解:
68*0.4+0.5*3.4*2
=6.8*4+0.5*6.8
=6.8*4.5
=30.6
146*0.6-0.06*460
=146*0.6-0.6*46
=0.6*100
=60
68*0.4+0.5*3.4*2
=6.8*4+0.5*6.8
=6.8*4.5
=30.6
146*0.6-0.06*460
=146*0.6-0.6*46
=0.6*100
=60
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