Multiple choice Find the missing term in the following number series. $82 107 207 432 832 ?$ $1022$ $1244$ $1399$ $1457$ $1511$ Reveal answer Fill a bubble to check yourself D Correct answer Explanation The pattern involves adding successive squares: 107-82=25=5², 207-107=100=10², 432-207=225=15², 832-432=400=20². The next difference is 25²=625, so 832+625=1457. Option D matches this result.