Monthly Archives: March 2018

DAY 91:

Today’s Challenge What is the total of all the square numbers from 1-100 inclusive? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84. The 6th & 7th rows … Continue reading

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DAY 90:

Today’s Challenge When playing the brilliant 24game, your task is to arrive at the target answer of 24. Each of the four numbers 0.5, 1, 5 and 10 must be used exactly once each in your calculation.  The four operations, … Continue reading

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DAY 89:

Today’s Challenge Of the numbers 1, 2, 3 . . . 6000, how many are NOT multiples of 2, 3 or 5? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from … Continue reading

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DAY 88:

Today’s Challenge In our latest MATHELONA challenge, can you place the 12 numbers below into the 12 gaps so all three lines work out arithmetically? 0    1    1    2    2    3    4    5    6  … Continue reading

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DAY 87:

Today’s Challenge Which is the ONLY way you can make 38 when adding together 6 unique digits from 1-9? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84. … Continue reading

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DAY 86:

Today’s Challenge Can you show how to use six 7’s (7 7 7 7 7 and 7) once each, together with the four arithmetical operations + – × ÷, to make the target answer of 100? The 7puzzle Challenge The playing board … Continue reading

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DAY 85:

Today’s Challenge Find the sum of the following three numbers: twelve thousand and two thirty five thousand and thirty-five fifty five thousand, one hundred and fifty-five Write your answer in words. The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 … Continue reading

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DAY 84:

Today’s Challenge Follow these six steps:  Work out the sum of 3 and 5,  Calculate the difference between 3 and 5,  Find the product of the two answers in points 1 and 2,  Find the square root to your answer in … Continue reading

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DAY 83:

Today’s Challenge What is the sum of all multiples of 0.5 from 10 to 20 inclusive? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up to 84. The 2nd & 3rd rows contain the … Continue reading

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DAY 82:

Today’s Challenge Using each of the four numbers 0.8, 0.9, 1.5 and 5 once each, and with the four arithmetical operations + – × ÷ available to use, can you arrive at the target answer of 7? The 7puzzle Challenge The playing board of the 7puzzle … Continue reading

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