You need to understand what square means. it's when a number multiplied by itself two times. 4 is equal to 2 squared, 9 is equal to 3 squared, 16 is equal to 4 squared. Use this technique to find A. a cubed number means a number is multiplied by itself three times. Am example would be 3 cubed equals 3 times 3 times 3, which in total equals 27. use this technique to find the answer for B.