Practice mental arithmetic with sum seeker!
Practice the mental arithmetic with a sum seeker! At something seeker you search as quickly as possible in a square with numbers. If you find enough sums you get the high score! Don't you get the high score? Then you can try again tomorrow because only today's high score will be kept.
Something Zoeker is made for primary school children but also nice if you are a bit older. Something Severer has four categories Sumen:
- Addition / Erbijommen
- Subtraction / there
- Multiply / times
- Share / partial sums
With the free version of something seeker you can play at the simplest level.
NB! This app cannot work properly on some old phones or tablets. A GPU is required for the app.
Keywords: arithmetic, mental arithmetic, practice, sums, tables, tables, primary school, primary education, group 3, group 4, group 5, group 6, group 7, group 8
November 2, 2025
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October 31, 2025