Mathematics Assessment Project
Ratios and Proportional Relationships
Time to see what they've learned. Seventh graders solve a set of seven short problems in the ratios and proportional relationships domain. Applications include photo negatives, washing machines, coffee powder, sleep, stamps, etc.
BBC
Bbc: Percentages
You can pick up some valuable percentage pointers on how to work with them. When you finish working your way through the pages, you can take an on-line "Test Bite" and check your understanding.