Description from extension meta
Tendo هي لعبة ألغاز رقمية تختبر مهاراتك في الرياضيات ودماغك.
Image from store
Description from store
In the Tendo game, put the numbers in the grid, if the name of a line is 10, you can eliminate a range. It looks like a math game. The goal is to add 10 in a row or column. Have fun.