Strengthen number sense and sequencing skills with this Google Slides practice activity modeled after the Acadience Missing Number Fluency measure. Students will view three numbers with one missing value and determine which number belongs in the blank. For example: 21, ___, 23, 24 → students identify that the missing number is 22 (increase by 1) 45, 50, ___, 60 → students identify that the missing number is 55 (increase by 5) 20, ___, 40, 50 → students identify that the missing number is 30 (i