2.3x1.2+2.5=2.3x(1+0.2)十2.5=2.3x1+2.3x0.2+2.5=2.3+0.46+2.5=4.8+0.46=5.26
2.3×1.2+2.5=2.3×(1+0.2)+2.5=2.3x1+2.3x0.2+2.5=2.3+0.46+2.5=5.26
根据数字的特点不可以的,