Some Math Quizzes for Presenting a Number by Using Equal Digits and Math Operations

Deyan Mihaylov, Velina Yordanova
University of Economics – Varna (Bulgaria)

Abstract. This paper gives a formalization of a problem for presenting a number by using particular set of equal digits and a range of math operators. Based on the formal definition, an example for presenting 7 in two ways by using 4 times the digit 2 is given. The first option is without any restrictions and the objective is to have the maximum possible number of solutions. For the second option there are some restrictions concerning the type and number of operations. The aim here is to achieve a result with minimum deviation from the constraints. Both options can be used as a type of math quiz for improving the cognitive way of thinking.
Keywords: Math Quizzes; Math Operations; Integer Numbers

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The Practical Bulgarian Language at the Baccalaureate of the St. Petersburg State University Универсалност и игрови характер на приказното произведение. Рецепция The Rise of Translation Studies in Bulgaria Multilingual Approach in Foreign Language Teaching Applied in Present Engineering Education