Jenny is working on a school project. She spends 10 hours doing research for the project and 2 hours writing a proposal. If she has 20 hours total to work on the project, how many hours does she have left to write her report?
How many hours has Jenny spent on the project so far? ** So far, Jenny has spent 10+2=<<10+2=12>>12 hours on the project.
How many hours does Jenny have left to write her report? ** Thus, she has 20-12=<<20-12=8>>8 hours to write her report.
#### 8