Source
http://pbskids.org/sevenlittlemonsters/games_fun/flash/monstersgame.html (via Wayback Machine)
Seven Little Monsters Addition Game screenshots
Seven Little Monsters Addition Game
| Rating: | [5 / 5 - 1 Votes] |
| Tags: | Educational , Mathematics , Seven Little Monsters |
| Publishers: | PBS |
| Language: | English |
| Play Mode: | Single Player |
| Library: | Flash Games |