The clock starts only when the answer input is ready. Answers are checked character by character; a correct answer advances immediately. A leading zero is not accepted as correct. There is no Skip in Classic. Your score is the number of correct answers in 120 seconds.
Personal-best history is saved only in this browser. It is practice history, not a verified or public score.
Sprint measures how many exact integer answers you complete under one frozen ruleset; wrong answers do not subtract points. They remain on screen until corrected, so the result reflects correct completions rather than guessing.
Classic preserves the strict four-operation, 120-second contract. Desk and Custom are clearly labeled practice scores, with custom operation ranges, duration, and optional Skip.
Wall St. Math Sprint is an independent arithmetic practice experience and is not affiliated with Zetamac. Classic follows the familiar rapid-answering pattern while Wall St. Math connects a run to saved progress and operation trends. The label “Zetamac-comparable” describes the frozen Classic settings, not certification by either product.
A strict score is useful because replay and personal-best comparisons stay within the same ruleset. Custom practice remains useful, but it is compared only with the exact same configuration.
After enough same-configuration runs, aggregate pace and correction signals can suggest a focused drill. You can also choose an operation directly.
Classic is a strict, Zetamac-comparable 120-second arithmetic score: four operations, instant answer checking, and no Skip.
Your score is the number of correct answers in 120 seconds. Without an account, personal-best history is saved only in this browser; signed-in players can sync progress.