Multiple choice What is the value of the missing digit? 1 __ 5 + 123 = 318 6 7 8 9 Reveal answer Fill a bubble to check yourself D Correct answer Explanation 1 __ 5 + 123 = 318 5 + 3 = 8 9 + 2 = 11 1 (carried) + 1 + 1 = 3