Code tool

Math Facts Trainer

Choose operations, a 1–10, 1–25 or 1–100 factor range, and a round length. Start explicitly, then answer at your pace or use QuickFire to advance immediately.

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Operations

High scores on this device

    Questions and answers are generated and checked locally. Up to 10 round summaries are saved in this browser on this device; answers are not saved. Use Clear saved scores to delete them. Sound plays only when enabled during an interaction. Switching tabs ends the round.

    A QUICK WALKTHROUGH

    How to use this tool

    1. Choose one or more operations, a range and 10, 20, 50 questions or 60 seconds.
    2. Optionally enable QuickFire and sound, then start and submit whole-number answers.
    3. Review accuracy, streaks and each answer. Clear device scores when desired.

    Local, bounded practice

    Operands or division factors come from the selected range. Subtraction is nonnegative; division uses a product dividend and always has an integer answer. Timed rounds end after 60 seconds or 500 answers, whichever comes first. The round also ends when this tab is hidden.

    Review and optional feedback

    See correct answers, accuracy, current and best streaks, plus a per-question review. Sound is off by default and only plays after an answer interaction when enabled. Reset discards the current round.

    Saved on this device

    Only up to 10 round summaries are saved in this browser’s local storage, ranked by correct count, then accuracy and best streak. Individual answers remain in memory for review and are not saved. Clear saved scores removes the local history. No questions or answers are uploaded.

    GOOD TO KNOW

    Common questions

    Which operations and round lengths are available?

    Choose addition, subtraction, multiplication, division or a mixture, and 10, 20, 50 questions or a 60 second challenge.

    Can I review mistakes?

    Yes. At completion, every submitted answer and its correct answer are shown; a timed-out or tab-interrupted current question is marked unanswered and included in accuracy.

    Does a score measure mathematical ability?

    No. It describes this practice round, not an educational assessment. Ranges and round lengths affect scores, so compare like settings.