Playing With Numbers EXERCISE 3.2 Cbse Class 6 Maths Ulam Spiral (Arrange Numbers in Spiral and make Prime Number) credits: wikipedia user:onmywaybackhome Ulam Spiral (You see prime numbers appear at diagonals of rectangles) credit: wikipedia Q1. What is the sum of any two         (a) Odd numbers?         (b) Even numbers? Answer: (a) The sum of any two odd numbers is an even