・Kirameki Sansu Nou (Sparkling Arithmetic Brain) "Elementary School 2nd & 3rd Grade" and "Elementary School 3rd & 4th Grade" set. ・Purchased used and used after copying. ・Cut (the bound parts have been cut, and each page, including the answer key, is separated. Because it has been cut, the condition of the product is listed as "Has scratches and stains.") so it's easy to copy, and the child liked it because they could do their favorite parts repeatedly, and it didn't feel like a problem set, making it easy for them to get started. ・How about doing it with your child during the winter break? It's also a good brain exercise for adults. ・Only 3 pages of "Elementary School 2nd & 3rd Grade" have pencil markings, which have been erased with an eraser. They won't show up when copied, but you can faintly see the marks if you look closely. ・P32 Let's Make Equations (Part 1) ・P54 Folding Numbers (Part 1) ・P55 Folding Numbers (Part 2) Please understand that there may be oversights before purchasing. Shipping will be until December 28th of this year. Please purchase early if you need it.