Manga High
All Class Levels
Manga High offers maths games for all class levels. School needs to register, and then pupils can be added by bulk upload, with username/password then being provided on a little card. Possibly a challenge to set up and share details with pupils at present.
Notes: Free for 60 days, due to Covid-19, school sign up required.
Multiplication.com
3rd class up – Loads of games to practice Multiplication.