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Adaptive reasoning is the ability of students to process thoughts received by students. It is used to solve problems that are received and share thoughts to convince acquired knowledge related to mathematics. This ability must be mastered by MI students so that mathematical concepts are mastered not only in the form of calculations but also in their application in daily life. In the era of Industry 4.0 mathematical communication can be improved by using various innovations and digital-based media, one of which is the Macromedia program. Learning Media Design is analyzed by the mix method approach. The subjects in this study were 20 MI students at MI Tarbiyatul Islam Ponorogo. Qualitative methods in this study were conducted to obtain forms of media that can improve students mathematical communication. The results of this study found that there were 4 aspects in improving communication skills, namely exercises in solving problems related to day-to-day life, understanding the material of integer counting operations, student self-confidence, and mathematical literacy writing skills. Quantitative methods of comparison are used to test the results of learning media that are made. After the results of the development there is an increase in students communication skills after using the media.