Number Sprint

How to play

1. 1Choose a local nickname profile so progress can stay separate on a shared family or classroom device.
2. 2Start the fixed daily sprint or choose untimed practice with the fact families you want to review.
3. 3Enter each answer with the keyboard or large touch targets, then read the clear correct or try-again feedback.
4. 4Finish the session and review missed facts, related fact families, accuracy, and next-practice suggestions.

Rules

• Accuracy is the primary goal; speed never turns an incorrect answer into a better result.
• Timed play is optional, and untimed practice remains available for calm repetition.
• The daily challenge uses the same fixed, versioned question set for everyone that day.
• Local profiles use nicknames and browser storage; no account, real student name, or email is required.

Scoring

• Accuracy is shown first in every result summary.
• Correct answers build the session score, while optional timed mode can add a small secondary pace measure.
• Untimed practice has no speed penalty and focuses on completion and improvement.
• Missed facts feed an adaptive review list and fact-family recap after the session.

Tips and strategy

• Say the full fact quietly before entering the answer to strengthen recall.
• Use untimed practice when learning a new fact family, then add timing only when it feels comfortable.
• Review inverse facts together, such as multiplication with the matching division facts.
• Aim for a steady accurate run instead of rushing after one difficult question.

Modes

Daily Sprint

One fixed 90-second accuracy-first question mix each day, with an optional no-login leaderboard.

Untimed Practice

Calm, repeatable fact-family practice with no speed penalty and large answer targets.

Adaptive Review

A focused follow-up set built from missed facts and their related multiplication, division, addition, or subtraction family.

Live Race

A private room-code race for 2–8 players with shared questions, server-checked answers, and accuracy-first standings.

Why it is useful

Designed for students, families, classrooms, events, with no login required for core play.

• Short sessions support retrieval practice without turning every exercise into a high-pressure timer.
• Local nickname profiles can keep progress separate when families or classrooms share one device.
• Fact-family review connects related number facts instead of treating each missed answer as an isolated mistake.

Mental maths topics

Practise number bonds, addition, subtraction, multiplication, division, doubles, halves, squares, missing numbers, or a mixed review. Difficulty bands adjust the number range while keeping every generated answer exact and checkable.

For families and classrooms

Several learners can use nickname-only profiles on one device. Scores, topic progress, missed facts, and streaks remain in that browser, so no student account, email, or real name is needed.