Changes from readers
Every correction a reader sent that a person checked and that changed a lesson, newest first. The line before and the line after, so you can see exactly what moved. A suggestion that was declined is not listed here; the person who sent it sees its status and the reason on their own record.
Want to be one of these? Read a chapter before it is final, or use “suggest a fix” on any lesson.
math/g10/c1/math-g10-ch01-real-numbers-school-g10-en · 2026-09-22
Before:
each one repeated twiceAfter: each one appearing twice as often