3.6×2.5+6.4×2.4脱式计算解：采用凑整法和分配律，原式=3.6×2.5+6.4×2.4=3.6×2.5+6.4×2.5-6.4x0.1=（3.6+6.4）x2.5-0.64=10x2.5-0.64=25-0.64=24.36
