2+2 | Math for Kids

Math as clear as two and two make four. 2+2 is an interactive trainer and the perfect school preparation for children aged 4 to 7. A cheerful little train shows exactly how addition and subtraction work on a number line.

App features:
• Learning you can see: move the train and count the steps — watching it happen makes the logic of arithmetic click much faster.
• A wide range: from the basics (numbers up to 10) to harder levels (100, 1000).
• Advanced topics: negative numbers and decimal fractions, introduced through simple play.
• Garage and rewards: solve a few examples and new vehicles open up one by one — a car, a tractor, a ship, an airplane, a flying saucer, a yellow submarine and a hot air balloon. Each has its own sound and leaves smoke or bubbles behind.
• Cheerful backgrounds drawn like a child's pencil picture: sky, house, notebook, space, sea, winter and a flowery meadow. Swipe to change them.
• Gentle background music (one tap turns it off) and five step sounds to choose from.
• A comfortable dark theme for study at any time of day.
• Works on phones and tablets, in portrait and landscape. The interface speaks 42 languages and picks your phone's language automatically.
• Made by MMR® for little explorers — nothing unnecessary, only knowledge.

Vehicles are unlocked by solving examples: 5, then 3, then 1 — after that, every vehicle is open for 18 hours.