This research aims to reveal the learning difficulties experienced by students in solving the exponential number and find out the factors that cause students experiencing learning difficulties in solving the exponential number. Research conducted at SMAN 3 Pontianak with research subjects were 36 students. Data collected by the test descriptions and interviews. Test description used to analyze the difficulties students in solving problems. Interviews are used to determine the factors that cause students\u27 learning difficulties. The analytical method used is the analysis of qualitative data. The results showed that the difficulties experienced by many students is difficult at this stage of the concepts, principles, and arithmetic operations. Difficulties experienced by students concepts as much as 41%. For example, students can not understand the nature of operation of the exponential number. While the difficulty in principle stage experienced by students as much as 14%. For example, can not implement the properties with proper operation. As well as difficulties in arithmetic operations experienced by students as much as 45%. For example, students do not master the operation of fractions and exponential number correctly.
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