The results show that the SDM is powerful and efficient technique in finding exact and approximate solutions for nonlinear differential equations amounts to an improvement of the performance of the approach. The fact that the SDM solves nonlinear problems without using He's polynomials is a clear advantage of this technique. It is worth mentioning that the method is capable of reducing the volume of the computational work as compared to the classical methods while still maintaining the high accuracy of the numerical result; the size reduction amounts to an improvement of the performance of the approach. The proposed technique has shown to computationally efficient in these examples that are important to researchers in the field of applied sciences.