简算41.2*8.1+11*9.25+53.7*1.9

2025-03-05 09:35:01
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回答1:

41.2*8.1+11*9.25+53.7*1.9
=41.2*8+41.2*0.1+10*9.25+1*9.25+53.7*2-53.7*0.1
=537.5