Os números no nosso dia a dia e algumas de suas aplicações no ensino básico

Abstract

This paper aims to introduce students and teachers of basic mathematical education some resolutions of problems in the field of arithmetic which can benefit the teachinglearning process. Initially, it will be addressed the divisibility with their properties and criteria. This is done after a presentation of Euclidean division and its applications in basic education. Moreover, it will be presented a brief theoretical background based on the concept and the operational properties of modular congruence with their residue classes, followed by their applications. Finally, it will be presented a brief history of the numbers in the calendars.