36*3.4+65*3.6+3.6
=3.6*34+3.6*65+3.6*1
=3.6*(34+65+1)
=3.6*100
=36028*60+30*44 用简便方法计算28*60+30*44=28×2×30+44×30=(56+44)×30=100×30=3000(15.8-3.843)*0.01+0.09 用简便方法计算(15.8-3.843)*0.01+0.09=(15.8-3.843-9)*0.1=2.957*0.1=0.2957
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