The article that you are about to read in this page was written by the staff of the MATHCOUNTS Foundation and published in their Winter 1995 edition of their newsletter MATHCOUNTS NEWS. It is is reprinted here by permission. Mild Turns Wild Every once in a while, tucked deep within a MATHCOUNTS School Handbook or MATHCOUNTS [...]
INTRODUCTION Before we can explain what a happy number is, you have to learn a new idea, called “recurrent operations.” As the word “recur” means “to happen again”, a recurrent operation must mean a mathematical procedure that is repeated. A very simple example would be the rule “add 5 to the result”. If we started [...]
Perhaps some of the readers of this page will not appreciate the unique reference being made in the title of this activity to a famous TV game show, called “The Price Is Right“. If you are one of those, here is a brief description of that program, so that the math activity presented below will make sense. On the [...]
INTRODUCTION A. When a number is multiplied by itself, the resulting product is called a SQUARE NUMBER, or simply a SQUARE. 12 × 12 = 144 so 144 is a square number. 35 × 35 = 1225 so 1225 is a square number. 133 × 133 = 17,689 so 17689 is a square number. B. [...]