There are three sets of problems where the students need to use the formula for z-score to find the z-score, the element, the mean or the standard deviation.
Set 1: Easier problems where the students are given three of the four parts of the z-score formula and asked to solve for the missing "part".
Sets 2 and 3: Word problems.
I find these problems work best for practice and review. There are two problems per page and can easily be used as a gallery walk or as task cards. Each set of problems comes with solutions.
Each set has 12 problems.