0.01 0.000081 = 0.81 1/10000 0.0001 Step 2 We have written the given repeating decimal as follows. 0.81 = 81(1 + 0.01 +0.0001 +...) Notice that each term of the sequence in the parentheses can be written as a power of 0.01. 1 = (0.01) a 0.01 = (0.01) b 0.0001 = (0.01) where a = b = and c = ot come back)