Multiple choice Directions: Complete the series. 121, 144, 169, 196, ? 225 219 221 223 256 Reveal answer Fill a bubble to check yourself A Correct answer Explanation From the series, it is clear that every term is the square of the consecutive terms. 112 = 121, 122 = 144, 132 = 169, 142 = 196. Similarly, 152 = 225.