Power Up Challenge 5th Grade Japanese, Math, Science, and Social Studies Challenge Course July 2024 - March 2025 set, a bundled sale. The answer keys are included and inserted into the textbooks. As shown in the photos, the Japanese section has writing up to the 3rd session of July. The other subjects are not written in. This is the Challenge Course, so how about it for those who want to tackle advanced problems? Please consider this item with the understanding that it is a used product. Thank you for looking.