Add to ORKGThe following is adapted from a problem that appeared in an online column on the Math Forum site (see http://mathforum.org/wagon/fall13/p1185.html; the original source: Felix Lazebnik, “Surprises”, Math Mag. 87 (2014) 212–221). Let NNNN be an integer whose decimal digits are non decreasing from left to right and having distinct
We have constructed a function n which associates to each non-null integer m the smallest positive n...
Researcher Carolyn Maher leads a whole class discussion after the students' exploration of the ...
This paper explores how a focus on understanding divisibility rules can be used to help deepen stude...
This study is an exposition of the articled A Curious String of Nines by Hans Liebeck [7] which was ...
We have unraveled two neat and powerful algorithms for calculating certain multiples of nine. These ...
In this paper our purpose is to answer questions like: Why casting out nines works? Why it fails? Wh...
summary:The article presents three (not so) easy mathematical problems. In the first problem, the ta...
Author’s Note: This is a slightly revised version of the article that appeared in print in Mathemati...
This continues the ‘Proof’ column begun in the last issue. In this ‘episode’ too we study some prob...
The Pseudo-Smarandache function was introduced by Kenichiro Kashihara in a book that is highly recom...
Esthetic numbers feature the difference between adjacent digits equal to one unity. This short commu...
Abstract. The classic thinking problem, the “Nine Dots Puzzle”, is widely used in courses on creativ...
Until the seventeenth century, rational numbers were represented as fractions. It was starting from ...
This work was an independent research project done for Math 392 and awarded Honors in Independent St...
The Smarandache Deconstructive Sequence (SDS(n)) of integers is constructed by sequentially repeatin...
We have constructed a function n which associates to each non-null integer m the smallest positive n...
Researcher Carolyn Maher leads a whole class discussion after the students' exploration of the ...
This paper explores how a focus on understanding divisibility rules can be used to help deepen stude...
This study is an exposition of the articled A Curious String of Nines by Hans Liebeck [7] which was ...
We have unraveled two neat and powerful algorithms for calculating certain multiples of nine. These ...
In this paper our purpose is to answer questions like: Why casting out nines works? Why it fails? Wh...
summary:The article presents three (not so) easy mathematical problems. In the first problem, the ta...
Author’s Note: This is a slightly revised version of the article that appeared in print in Mathemati...
This continues the ‘Proof’ column begun in the last issue. In this ‘episode’ too we study some prob...
The Pseudo-Smarandache function was introduced by Kenichiro Kashihara in a book that is highly recom...
Esthetic numbers feature the difference between adjacent digits equal to one unity. This short commu...
Abstract. The classic thinking problem, the “Nine Dots Puzzle”, is widely used in courses on creativ...
Until the seventeenth century, rational numbers were represented as fractions. It was starting from ...
This work was an independent research project done for Math 392 and awarded Honors in Independent St...
The Smarandache Deconstructive Sequence (SDS(n)) of integers is constructed by sequentially repeatin...
We have constructed a function n which associates to each non-null integer m the smallest positive n...
Researcher Carolyn Maher leads a whole class discussion after the students' exploration of the ...
This paper explores how a focus on understanding divisibility rules can be used to help deepen stude...