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ABSTRACT Iwan Jepri, Analysis of Mathematical Creative Thinking Ability in Solving Mathematical Problems based Learning Styles in Class VIII Middle School Students. Thesis. Medan: Postgraduate Program, State University of Medan, August 2019. This research aims to obtain an overview of students learning style at St. Peters secondary school in Medan, then analyse the students mathematical creative thinking skills in the problem of solving the study style of the accommodation, Divergent, convergent, and learning assimilation styles. In addition, interviews were conducted with studentsmistakes to find students difficulties in solving problems.Based on the results of a study of 33 students, obtained students with accommodation learning styles amounted to 5 students (15.15%), students with divergent learning styles amounted to 8 students (24, 24%), students with convergent learning styles have 7 students (21,21 %), and students with an assimilation learning style total 13 students (39.39%). Based on the test results of students mathematical creative thinking abilities obtained levels of creative thinking abilities in the high category amounted to 4 students (12.12%), the medium category numbered 7 students (21.21%), and the low category numbered 22 students (66.66%). From the results of interviews with the students, the style of accommodation learning has difficulty in concept indicators, procedures, and principles. In divergent learning styles students have difficulty on fact indicators, concepts, and principles. In convergent learning styles, students experience difficulties in indicator, fact, and principle procedures. In an assimilation learning style, students experience difficulties in fact, concept, and principle indicators. Keywords: creative thinking, learning style