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. All number sequences in this resource increase by 1s, 5s, or 10s. 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) 2