Mathematics Ed. Children Book Lot of 4 Chinese Version

Review all pictures before buying. What you see is what you get so check pics carefully. Retro and RARE USA ITEM. 4 authentic Chinese kids math work works. 2017 edition plus. Nice solid condition. Very few pages got writing on them. Less than 10 total. Comes as pictured. No answer book or sheets. Just trying to reclaim some space so passing along some extra gear. Feel free to message if you have any questions!