Type the correct answer and click 'next question' before the time runs out. Get it right, and you move onto the next question. Don't worry if you go wrong - we've included some really tricky sums - plus you get as many goes as you want!

How high can you score? Over 20 and you are a Maths Trainer Expert, over 50 and you're a total maths star!

91 - 27 = ?

Time Left:

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