41.2*8.1+11*9.25+537*1.19简便运算

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41.2*8.1+11*9.25+537*1.19简便运算41.2*8.1+11*9.25+537*1.19简便运算41.2*8.1+11*9.25+537*1.19简便运算41.2*8.1+11*9

41.2*8.1+11*9.25+537*1.19简便运算
41.2*8.1+11*9.25+537*1.19简便运算

41.2*8.1+11*9.25+537*1.19简便运算
41.2*8.1+11*9.25+537*1.19
=4.12*(10-1)*9+(10+1)*9.25+5.37*(100+20-1)
=(41.2-4.12)*9+92.5+9.25+537+107.4-5.37
=37.08*(10-1)+101.75+644.4-5.37
=370.8-37.08+96.38+644.4
=334.72+96.38+644.4
=431.1+644.4
=1075.5