Monthly Archives: June 2018

DAY 174:

The Main Challenge Read the facts below: I am a 2-digit number, I am a multiple of 7, The difference between my two digits is 4. Which number am I? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 … Continue reading

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DAY 173:

The Main Challenge When allocating each letter of the English alphabet a numerical value as follows; A=1 B=2 C=3 … Z=26, the value of the word SUM, for example, would be 19+21+13 = 53. What would be the value of … Continue reading

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WELCOME

A warm Welsh ‘Croeso’ to 7puzzleblog.com and our compendium of daily number puzzles. Five challenges are posted each day, 7 days a week; designed for our many followers from over 160 countries & territories throughout the world. As well as our ever-expanding website of … Continue reading

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DAY 172:

The Main Challenge You are playing our Mathematically Possible board game and have rolled the numbers 6, 6 and 6 with your three dice.  Using these once each, with + – × and ÷ available, which SIX target numbers from 1-30 is it possible to make? The 7puzzle … Continue reading

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DAY 171:

The Main Challenge You have the same starting number and final answer, both 22.  There are 10 arithmetical steps altogether but the 10th, and final, step is missing.  If this final step involves a whole number, what should it be to make the final … Continue reading

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DAY 170:

The Main Challenge Study the seven clues and place the numbers 1-9 into the nine positions on this 3-by-3 grid. Each number should appear exactly once: x              x             … Continue reading

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DAY 169:

The Main Challenge Three unique digits from 1-9 must be used to arrive at the target number 18 when multiplying two of these numbers together and adding or subtracting the third unique number, (a×b)±c. One way of arriving at 18 is … Continue reading

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DAY 168:

The Main Challenge The two sections below both contain eight letters, A-H. Each letter has an addition calculation attached, all involving 2-digit numbers. Which is the only letter that has exactly the same answer in both sections? Section 1 D:68+18 … Continue reading

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DAY 167:

The Main Challenge Find the sum of all the numbers between 5 and 25 that are divisible by 3, 4 or 7. 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 … Continue reading

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DAY 166:

The Main Challenge This number trail has seven arithmetical steps.  Start with the number 49, then: √      add nineteen      50% of this      –2      +26      subtract nine      ÷7     … Continue reading

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