Choose Your Level
Select an age level that suits you. Start with easier additions or challenge yourself with trickier calculations.
Addition Game
Your Addition Challenge Starts Here!
Choose your age level using the menu above, press Start and see how quickly you can spot incorrect addition calculations.
How to Play in 3 Simple Steps
Spot the Mistake
You'll see four addition sums. Three are correct and one is wrong. Can you find the incorrect calculation?
Build Your Score
Earn points for correct answers, build a winning streak and see if you can climb the leaderboard.
Remember – find the INCORRECT sum!
Three calculations are correct. One contains a mistake. Choose the addition sum that is wrong.
BUILD YOUR WINNING STREAK
How Do You Score Points?
The more answers you get right in a row, the more points you earn!
Your first correct answer earns 1 point, your second earns 2 points, your third earns 3 points – and so on, up to a maximum of 10 points per correct answer.
Answer 1 +1
Answer 2 +2
Answer 3 +3
Answer 4 +4
Answer 5 +5
Keep your streak going to earn 10 points per answer!
Get One Wrong?
Your next correct answer earns 1 point again. Then you can start building another streak.
Don't worry – you keep all the points you've already earned!
Make Mental Maths Second Nature
Addition is one of the most useful maths skills you'll ever learn. Whether you're counting money, adding up scores or working out quantities, being able to add confidently makes life easier.
Our game lets you practise at a level that suits your ability. The more you play, the quicker you'll become at recognising correct and incorrect calculations.
Each age level has its own weekly leaderboard, and there's also an all-ages leaderboard shown above. Can you make it to the top?
Fancy Another Challenge?
Enjoyed practising your addition? Try one of our other games and put your skills to the test!
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