Anchor every percent to its base
Percent changes depend on the original amount. A 20% increase and a 20% decrease do not cancel.
6 guided questions, then 10 independent · PercentsReason with quantities
Ratios, percentages and units
0 of 3 tasks checked
One step at a time
Checking a task records your daily activity. Skill mastery is recorded separately after practice.
Your lessons and practice
Focused drills
Finish the lesson first, then use a fresh set to check that you can apply it independently.