Free addition and subtraction game for Years 1 to 6 — numbers to 20, 100 and 1,000, matched to the national curriculum. No account needed.
Choose a number range and practise connected mental addition and subtraction questions with immediate corrective feedback. Correct answers can trigger celebrations. Feedback and retry options depend on the game.
Learning objective: Develop fluent mental addition and subtraction and use inverse relationships to check answers.
Curriculum anchor: England mathematics programmes of study: number, addition and subtraction across Key Stages 1 and 2.
This game is designed as short independent practice after an idea has been introduced. It does not replace direct teaching, mathematical or scientific discussion, or an adult checking whether the learner can explain the idea away from the screen.
Ask which number fact made the answer easier, such as bridging through ten or using a known inverse. Take a break when you need one.
Does it need an account? No. The game runs in the browser and asks for no name, email address, school or location.
Is it timed? Timing varies by activity. Check the available modes and instructions before starting.
Can it be used on a phone? Controls vary by game. Use the on-screen buttons or read the instructions for keyboard and drag actions.
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