How to play
- Tap a number, then a sign, then another number. The two join into their result.
- Keep going until one number is left.
- If it equals the target, you win the round. If not, try again.
A round has no clock. The result screen shows how many you finished and how many slips you made, and keeps your best for each level on this device.
Levels
- Level 1: Three numbers, plus and minus
- Level 2: Three numbers, with times
- Level 3: Four numbers, all four signs
Start at the level where about eight answers in ten are right, and move up when it feels easy.
What this game practises
There is no single route here, and that is the point. The child has to try, look ahead, and change plan. It is arithmetic used for a purpose, with every operation in play, and it quietly teaches that the order of operations matters. Every puzzle has at least one solution, which the game can show.
Tips for parents and teachers
- Work backwards from the target: what could the last step be?
- If stuck, look for a pair that makes a helpful number such as 10.
- After solving, look for a second way.
Play it without a screen
Deal four cards from a pack and turn over a fifth as the target, or simply try to make 24. Everyone works at once and the first to find a way explains it.
More games for classes 7 and 8
- Percent MatchWhich fraction is the same as 25%? What is 20% of 150? Choose the match.Classes 5 to 8
- Find xA simple equation. Work out the value of x and choose it.Classes 6 to 8
- Squares and RootsSquares, square roots, cubes and powers. Type the answer.Classes 6 to 8
- Magic SquareA three-by-three square with gaps. Fill it so that every row, column and diagonal has the same total.Classes 4 to 8