解: 75×24 =75×(20+4) =1500+300 =1800祝你开心
75*24=3×25×4×6=25×4×3×6=100×18=1800
75*24＝25×3×4×6＝25×4×3×6＝1800
75x24=100x0.75x24=100x18=1800
解：原式=75x4x6 =300x6 =1800
