Students only work on one operation at a time. Most students (of all grade levels) start with Addition and do not move on to Subtraction until they have “mastered” their Addition facts.
An operation is complete when the student has demonstrated fluency in all the individual facts within the operation. When this is the case, the fluency matrix on their student report will be completely green, and the score will be 100.
💡 Note that a fluency score of 100 is not the same as getting 100% on an individual quiz or practice! In a single activity, the student usually will not work on all the facts. Also, the fluency score takes the last few days of results into account, not just today.
Teachers or parents may also choose to change a student’s program manually, before they reach a score of 100. We don’t usually recommend skipping ahead in this way, but it is sometimes helpful — for example, if a student is so frustrated that they are no longer trying. If your child is using XtraMath at school, always check with their teacher before making changes to their program.