Mental Calculation Standard Task Challenge

-Both simulators cover the three standard tasks that are common to Calculation League and the Mental Calculation World Cup: (1) addition (without subtraction included); (2) multiplication; and (3) inexact square roots.

-There are three levels for the test. Level 1 is addition of five 5-digit numbers, 4×4 muliplication, and square roots to 4 significant digits. Level 2 is addition of seven 7-digit numbers, 6×6 multiplication, and square roots to 6 significant digits. Level 3 corresponds to the tasks as used at the Mental Calculation World Cup: addition of ten 10-digit numbers, 8×8 multiplication, and square roots to 8 significant digits.

-The goal is to either submit two correct answers (mini) or ten correct answers (regular) per category. The simulator moves to the next section upon submission of the required number of correct answers.

-应用程序将显示结果页面，展示三个部分各自的正确答案数量和耗时。同时会列出所有答错的题目，并附上提交的答案与正确答案。

-This simulator was released for testing on March 25, 2026. If you encounter any errors or glitches using the simulator, please let us know at contact@mentalcalculation.org