Monthly Archives: July 2017

DAY 213:

Today’s Challenge This Kakuro challenge is ideal for any beginners to this fantastic puzzle. Your number skills will improve the more of these you attempt. The rules are very simple: Just like a crossword, fill in the boxes Each box must … Continue reading

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DAY 212:

Today’s Challenge This type of calculation is carried out when playing our popular arithmetic and strategy board game, Mathematically Possible. Using the numbers 2, 3 and 3 once each, with + – × ÷ available, can you list the ELEVEN target answers from 1 … Continue reading

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DAY 211:

Today’s Challenge As well as 9421 (9+4+2+1), can you list the SEVEN other ways of making 16 when adding together 4 UNIQUE digits from 1 to 9? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing … Continue reading

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DAY 210:

Today’s Challenge Try the following MATHELONA challenge, similar to my pocket book challenges but slightly tougher!  Full details of our pocket book can be found by clicking MATHELONA. Your task is to make all four lines work out arithmetically by replacing the 16 ◯’s … Continue reading

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DAY 209:

Today’s Challenge . . . is very famous in Japan, having recently been used as an integral part of a TV advert for Google’s Nexus 7 tablet.  Click this YouTube link for a browse. Using the numbers 1, 1, 5 and … Continue reading

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DAY 208:

Today’s Challenge This puzzle invites you to use seven 2’s (2, 2, 2, 2, 2, 2 and 2), with + – × ÷ available, in some special calculations. For instance, to make 1 and 2 you could simply do:  2 + (2÷2) – (2÷2) – (2÷2)  =  1  2 … Continue reading

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DAY 207:

Today’s Challenge List the first seven 3-digit numbers that do not contain a 0, 1 or 2 as part of their number. What is your total of these seven numbers? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing … Continue reading

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DAY 206:

Today’s Challenge Study the seven clues below and place the numbers 1-9 into the nine positions. Each number should appear exactly once: x              x              x x     … Continue reading

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DAY 205:

Today’s Challenge Pair the ten numbers below so that the difference between the two numbers in each pair is exactly divisible by 7: 6      17      28      37      45      58   … Continue reading

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DAY 204:

Today’s Challenge Can you divide these nine numbers into three groups of three so that the sum of each group is the same? 11      25      35      43      51      63   … Continue reading

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