ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL OPERASI HITUNG PENGURANGAN BILANGAN DESIMAL PADA SISWA DI SEKOLAH MENENGAH PERTAMA PONTIANAK

AbstractThis study aims to find out the errors made by students in solving arithmetic operations ondecimal numbers class VII SMP Negeri 21 Pontianak. Data were collected throughstudent answers form of written questions essays. The method used inthis research is descriptive method. data analysis technique that will be thisresearch correction. Based on results has been done questionnumber 1 there are 80% errors, question number 2 73.3%, 3 73.3%,question 4 86.7% while 5 86, 7%. From studyit can concluded mistakes often conceptual errorsand operational errors. This concept error, do not understand properties ofnumber and place values itself. Meanwhile, students' operatingerrors make calculating decimal subtraction operations. It ishoped this a reference further research.Keywords : Error analysis, Student error