Z-Kai for fourth graders. Four months' worth, already cut and without any writing. Includes Japanese and math. (July, August, September, March) Easy to copy since it's been cut. ★ Problems marked with three stars are high-level problems. Recommended for those who are hesitant to start Z-Kai in 5th or 6th grade. My family solved these first, and then started the 5th-grade problems with confidence. ※ There is no writing on the problems, but there are lines erased in the table of contents. Also, there are some corner folds from storage. ☆ For those who understand used items ☆ Immediate purchase welcome ☆ Recycled, simple packaging