Table of Contents
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Activities
- Digital Expressions (0)
- Math with Calculators (7)
-
Number Theory & Primes (24)
- RSP Palindromes
- Trotter’s Own Prime Oddities
- Trotter in Prime Curios
- Father Primes
- Trotter Numbers & Trotter Primes
- Polygonal Numbers
- Smith’s Problem
- Ruth-Aaron Numbers
- Niven Numbers
- GoldBach’s Conjecture
- Sum Primes
- Big Primes
- Divisibility Tests
- Egyptian Math
- Repeating Decimal Patterns
- PAUL ERDÖS: a tribute
- It’s a Square, Square World
- Rep-Digit Numbers
- Primes and Square Pairs
- Sexy Primes
- Amicable Numbers
- Perfect Numbers et al.
- Charlene Numbers
- Admirable Numbers
-
Problem Solving (44)
- Sharin’ the Drivin’
- A “Mean” Product
- The Battle of the Books
- Murals by Max
- A Little Bite of Pi
- Sigma of P(n)
- Arthur’s Arithmogons
- Time Is Power!
- Omega Numbers
- Portioning Out Peanuts
- Marathon Mitch
- A Quartet of Integers
- Two Differences to a Sum
- Alvin’s Theorem
- Hiking Along the Hypotenuse
- A Real Estate Dealer
- Then I’d Rather Not Know
- A New Spirit for Your Investments
- Chocolate Chips
- The Rub-a-dub-dub Restaurant
- Calculating Expressions
- Trotter’s Treats
- Buying Carrots
- No Primes Here
- Levy Expressions
- Alpha-Math
- Power-full Fractions
- To Plug, or Not to Plug
- The Three Little Primes
- Problem Solving Quizzes
- Inching Along Down the Football Field
- Square-Cube Ages
- UP-down: Match 2
- UP-down Match
- Ladder Math
- A Tale of Two Problems
- Digit Add-On Problem
- Products with Number Sums
- Number Line Land
- The “Decimalized” Year
- How Old Are You — In Days?
- Yppy’s Year of Life
- Apple Bobby
- The 100th Letter
- Pythagorean Theorem (0)
- Recursive Operations (9)
-
Simple Operations (22)
- Pandigital Diversions
- Digital Diversions
- More About P = N2 + M3
- Pi Words
- Distinct Digit Fraction Sums: Revisited
- Distinct Digit Fraction Sums
- Russian Peasant Multiplication
- Adding Fractions
- Super Squares
- Almost Magic Squares
- Same Digits Multiplication
- Wordsworth
- Strange Things That Happen With Numbers
- More Strange Multiplication
- Nine-Digits-&-Equal-Products
- Double/Triple
- Five Distinct Digits
- Consecutive Digit Products (CDP’s)
- Seeing Double
- Trotter Dates
- Product Dates
- Equal-Sum Groups
- STOP Math (10)
- Articles
