Brothers, stop wasting time searching through primary school e-textbooks.

The main subjects and electives for grades 1-6 are basically all packed in one go.
Mainstream editions like PEP, Beijing Normal University, Jiangsu Education, and Foreign Language Teaching and Research editions are all available, dozens of them.
The key point is that they are free high-definition PDFs.
Not the blurry, eye-straining scanned versions—these are ready to print.
Teachers preparing lessons and parents helping children preview or review can save a ton of trouble.
Link:

If you find this after buying something, you'll really slap your thigh.