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Speed Sums Training Tool

This is a great puzzle to tune up your maths skills.

What you need to do is work out which of the three numbers given sum up to the target you are given. But remember, only three of the numbers will reach that total!

Rather than doing it randomly, use some of the maths solving strategies and techniques discussed in the articles to help you work out likely candidate numbers without doing full sums - for instance look at the last digits of numbers and see if they can sum to give the last digit of the solution number.

Good luck - do three of these each day and measure how long it takes you to get the correct answer. Do this daily and you should start to see a gradual improvement in the speed of your maths, a real and satisfying sign of progress!

Target: 191
Reveal Answer

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