An online mental math tool. Testing addition, subtraction, division and multiplication skills. School mathematics as a primary basis for algebra and geometry.
An online Russian Language Vocabulary Trainer. A vocabulary list of difficult words in the Russian language for grades 1-10.
An online multiplication table and mental arithmetic skill test. Choose any arithmetic operation, number of test questions and begin testing your addition, subtraction, division, and multiplication skills.
Number of questions in the test
Learn from Leitner's system
To make it easier to remember the questions from the Blitztest trainers, the site features the smart repetition system. Choose the target you want and start studying.
August 23, 2021
The interval repetition system is automatically enabled for authorized users. Just choose a math, geography, or russian goal and start studying.
April 14, 2021
Geography is one of the fundamental sciences that define a person’s identity. Knowledge of geography allows you to better navigate the flow of information and understand the books and cultures of other nations. Use the World Countries Trainer to test your knowledge of the political map of the world or to learn new things about countries around the world.
February 10, 2021
Changes have been made to the algorithm for selecting replacement letters and places in words for questions. Fixed a number of errors and filled missing accents in the database of vocabulary words. Adjusted the trainer skipping of certain places in words where users almost never make mistakes.