TABLE OF CONTENTS
Chapter 1 Modular Arithmetic 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
Chapter 13 Proportion and Slow/Fast Watch Problems 212
Chapter 14 Words Problems Related to Work 227
Chapter 15 Net 242
Chapter 16 Longest Path and Shortest Distance 269
Chapter 17 Folding Paper 289
Chapter 18 Problems with Analytic Geometry 307
Chapter 19 Grids 322
Chapter 20 Back Calculation 335
Index 353
