5 ERROS COMUNS EM ARITMÉTICA | Matemática Rio

🔗 Purchase the ENEM Math 800+ course: https://pay.hotmart.com/C97770743H Access our platform: http://www.matematicario.com.br 5 common arithmetic errors: #1 - Addition of two negative integers; #2 - Multiplication of fractions; #3 - Multiplication of an integer and a fraction; #4 - Squaring a negative number; #5 - Division by zero. Learn with Matemática Rio and never make these mistakes again! Matemática Rio is a channel with online math lessons, totally free and creative! Learn complex topics in minutes! Created by Professor Rafael Procopio: Postgraduate degree in Mathematics Teaching (UFRJ); Mathematics teacher in the Rio de Janeiro municipal public school system. Mathematics Rio on social media: Facebook:   / matematicario   Twitter:   / matematicario   Google+: http://www.google.com/+MatematicaRio