Question

Using coloum method find the square of 98

Answer 1

b^2 = 64 2ab = 144 + 6 = 150. Step 4 : Bold the unit digit of 2ab, add its tens and other digit values to a^2. 2ab = 150 a^2 = 96 Step 5 : Bold the number in column 1. a^2 = 96 Step 6 : Append all the digits bolded, 9604 Hence the square root of 98 is 9604..