75*4.7+14.7*25=?简便方法计算,
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![75*4.7+14.7*25=?简便方法计算,](/uploads/image/z/1070787-3-7.jpg?t=75%2A4.7%2B14.7%2A25%3D%3F%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%8C)
75*4.7+14.7*25=?简便方法计算,
75*4.7+14.7*25=?
简便方法计算,
75*4.7+14.7*25=?简便方法计算,
75*4.7+14.7*25
=75*4.7+(10+4.7)*25
=75*4.7+10*25+4.7*25
=(75+25)*4.7+10*25
=100*4.7+10*25
=470+250
=720
计算75*4.7+14.7*25=352.5+367.5=720
简便算法:75*4.7+14.7*25
=75*4.7+(10+4.7)*25
=75*4.7+25*4.7+250
=(75+25)*4.7+250
=100*4.7+250
=470+250
=720
720
75*4.7+14.7*25=75*4.7+(10+4.7)*25