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		The Teaching of MathematicsPublisher: Društvo matematičara Srbije, BeogradISSN: 1451-4966 (Print), 2406-1077 (Online)Issue: XXI_2Date: 2018Journal Homepage | 
	 
 
	
		  
 
AbstractKeywords: Data modelling; interactive charts; upper secondary education.MSC: 97M10 M14 
	
AbstractKeywords: Greatest common divisor; fundamental theorem of arithmetic; least common multiple.MSC: 97F60 F64 
	
AbstractKeywords: One problem multiple change; bianshi teaching; mathematics problem; variation; invariant.MSC: 97D40 D43 
	
AbstractKeywords: bimatrix game; Kakutani fixed point theorem; multivalued map; quasi-strict equilibrium.MSC: 97M40; 91A05; 91B62 M45 
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