This document provides examples of multiplying two numbers close to 100 using the base 100 method. It demonstrates:
1) Multiplying 88 x 98 by writing them as distances from 100, getting 8600, then adding the adjustment of 12 x 2 = 24, for a total of 8624.
2) Multiplying 102 x 104 by writing them as distances from 100, getting 10600, then adding the adjustment of -2 x -4 = 8, for a total of 10608.
3) Multiplying 97 x 102 with one number below and one above 100, getting 9900, then subtracting the adjustment of 3 x -2 = -6, for a total of 9894.