Here's an engaging set of mixed coins task cards for counting money to $1. These critical thinking money math puzzles are a fun challenge for math centers and early finishers. For a closer look at this US coins resource, click the preview button!Here's how these coin combinations riddle cards work!Choosing from a grid of nine numbers on each of the 24 math puzzle cards, your students will determine the secret number by using critical thinking and their knowledge of counting mixed groups of US