Chapter 1 Modular Arithmetic (sample. click to open the pdf file) 1
Chapter 2 Divisor and Divisibility 18
Chapter 3 Last Digit and Remainder 40
Chapter 4 Number Bases 52
Chapter 5 Special Numbers 66
Chapter 6 Diophantine Equations 77
Chapter 7 Permutations of Digits and Sum of N-Digit Numbers 90
Chapter 8 Arithmetic Sequence and Common Terms 111
Chapter 9 Absolute Value and Inequalities 125
Chapter 10 Probability Problems 146
Chapter 11 Recurrence Relations 169
Chapter 12 Consecutive Integers 198
