25先乘4得100,再把6拆分成2×3,变成2×3×100×25,再变成(2×25)×(3×100),算得50×300, 最后算出来15000
25乘以6乘以25乘以4简便计算=(25x6)x(25x4)=150x100=15000
25x6x25x4=25x2x3x(25x4)=50x3x100=150x100=15000
(25x6)x(25x4)=150x100=15000