Category Archives: 7puzzleblog.com

DAY/DYDD/PÄIVÄ/NAP 68

The Main Challenge Can you arrive at the target number 105 in two different ways when using the five numbers 1, 2, 3, 4 and 5 once in each calculation, and with + – ×  ÷ available? The 7puzzle Challenge The … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 67

The Main Challenge Can you correctly place 0 1 1 2 2 3 4 5 5 8 9 and 9 into the 12 gaps below? ◯  +  ◯   =    3    =   ◯  –  ◯ ◯  + … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 66

The Main Challenge When multiplying two numbers together and then adding or subtracting a third number, there are four ways of reaching 60 when the three numbers used in each calculation are in the range 1-9, and can be repeated. One way … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 65

The Main Challenge You must arrive at the target number of 24 by using four unique numbers from 10-19 and with + – × ÷ available to use; one such example being (15×12÷18)+14 = 24. Can you derive another 4-number combination to make 24? … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 64

The Main Challenge From the numbers 1-30, eliminate the following: numbers containing the digit 1 prime numbers numbers in the 20’s factors of 72 What is the only number that remains? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 63

The Main Challenge Which is the only digit not represented when listing the square numbers from 10² to 19²? 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 & 7th … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 62

The Main Challenge When listing the FIVE 3-digit cube numbers, all digits from 1 to 9 are represented, except one. Which digit is missing? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 61

The Main Challenge Read the information below to find each of these three different numbers:  A is the only 2-digit square number that does not contain any odd digits  B is the only 2-digit prime number with both its digits the same  C is the only 2-digit … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 60

The Main Challenge Happy St David’s Day/Dydd Gŵyl Dewi Hapus. It’s our National Day in Wales today so try our special alphabet number puzzle; probably the hardest you can ever try! The longest place name in the UK is a small village on … Continue reading

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DAY/DYDD/PÄIVÄ/NAP 59

The Main Challenge Your starting number is 18 and your task is to arrive at the same final answer.  There are ten arithmetical steps from beginning to end, each one involving a whole number, but the 9th (and penultimate) step … Continue reading

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