Grand Prix: a free fractions, decimals and percentages game for the 11+

About Grand Prix

Grand Prix is a three-lap race against three rival cars, powered by 11+ fractions, decimals and percentages questions. The car drives itself, so your child only has to answer: every right answer is a speed boost, and quicker answers boost more. Questions keep coming until the chequered flag, and the finishing place, from first to fourth, is the result. It is free to play, with no sign-up.

About half the questions come from Prep4All’s lessons on fractions, percentages and converting between the three forms; the rest come from the game’s own set, from fraction and percentage of an amount to percentage change and money and measure problems. Questions get harder after a streak and easier after misses, and the pit-wall debrief after the race explains every trap that caught your child.

How to play Grand Prix

1. Choose your class (Rookie, Pro or Champion) and press Start your engines.
2. Wait for the five red lights to go out, then answer each question as your car laps the track.
3. Tap the right answer for a turbo boost, and get three in a row to fire the nitro.
4. Take the pit-lane challenge at the start of lap 2: one hard question for a big boost.
5. Cross the line after lap 3, then read the debrief to see how each trap works.

What it practises for the 11+

Fractions, Decimals and Percentages

Questions ask children to convert between fractions, decimals and percentages, compare and order them, and spot the same value written in different forms. It builds fluency with the key facts, e.g. 3/8 = 0.375 = 37.5%. Learn the topic →

Percentages

Questions ask for a percentage of an amount, sale prices, percentage change and the original amount before a change. It builds the method of finding 10% first, e.g. 15% of £40 is £4 + £2 = £6. Learn the topic →

Fractions

Questions ask children to find a fraction of an amount, simplify, find equivalent fractions and change between mixed numbers and improper fractions. It builds the divide-then-multiply method, e.g. 3/4 of 20 is 20 ÷ 4 × 3 = 15. Learn the topic →

Try Grand Prix questions

Questions from the game, for you to try together. Have a go before opening the answer.

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