A number that can be expressed as the product of a number with itself is called a square number , or simply a square . 0 × 0 = 0² = 0 1 × 1 = 1² = 1 2 × 2 = 2² = 4 3 × 3 = 3² = 9, 4 × 4 = 4² = 16 5 × 5 = 5² = 25. 6 × 6 = 6² = 36 7 × 7 = 7² = 49 8 × 8 = 8² = 64 …
Read more