Arithmetic is an important skill to learn at an early age. However, teaching arithmetic to pre-school children can be challenging as children around that age have short attention span and prefer to engage in interactive activities. Thus, the purpose of this study is to incorporate multimedia elements into mathematical learning to make it more interactive and exciting to the children. The contents have been specifically designed to visualize the introduction of numbers and to encourage children’s interaction by drawing their attention to the courseware. The result revealed that the students have shown significant improvement over the mental arithmetic approach after being subjected to a typical classroom test. This concludes that the mental arithmetic using interactive multimedia could enhance learning experience for pre-school children.