如题所述
124×75-72×25+75×2用简便运算
=124x75-24x75+75x2
=(124-24)x75+150
=100x75+150
=7500+150
=7650
=124x75-24x75+75x2
=(124-24)x75+150
=100x75+150
=7500+150
=7650
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第1个回答 2017-06-20
124x75-72x25+75x2
=75x(124+24+2)
=75x150
=11250
=75x(124+24+2)
=75x150
=11250
第2个回答 2017-06-20
=124*3*25-72*25+3*2*25
=(124*3-72+3*2)*25
=(372-72+6)*25
=306*25
=7650
=(124*3-72+3*2)*25
=(372-72+6)*25
=306*25
=7650
第3个回答 2017-06-20
124×75-72×25+75×2
=（124+2）×75-72×25
=126×75-72×25
=126×3×25-72×25
=378×25-72×25
=（378-72）×25
=306×25
=7650
=（124+2）×75-72×25
=126×75-72×25
=126×3×25-72×25
=378×25-72×25
=（378-72）×25
=306×25
=7650
第4个回答 2017-06-20
124×75-72×25+75×2
=124×75-24×3×25+75×2
=124×75-24×75+75×2
=(124-24+2)×75
=102×75
=7650
=124×75-24×3×25+75×2
=124×75-24×75+75×2
=(124-24+2)×75
=102×75
=7650
