How to find the area in the z-table Using the z-table, you can easily find the area of the z-value. . First, locate the whole number and the tenths on the first column, . Second, locate also the third digits (the hundredths) on the first row, . Then, the intersection of the row and column is the area of the z-value. DO 01 03 For example: 0.0 1. What is the area of z = 2.23? 0.1 Referring to the z-table, we can conclude 0.2 that the area of z = 2.23 is .4871. 03 2. What is the area of z = 3.1? 0.4 .1664 Base on the z-table, if the z-value is greater than 3.09, its area is 3.0 approximately equal to .4999. Note: Always remember that z-value must be a three digit number