Tag: arithmetic sequence

Square Numbers and Odd Numbers
When we were having dinner, Shawn’s dad casually tested his calculation.Dad: 1 plus 3 is?Shawn: 4Dad: How about 1 plus 3 plus 5?Shawn: 9Dad: Add the next odd number 7?Shawn: Well, it is 9 plus 7, and it equals 16. Shawn’s dad suddenly realized that square numbers could be formed by adding consecutive odd numbers…