Category Archives: 7puzzleblog.com

DAY 323:

Today’s Challenge There are 62 people employed by a company and all of them travel to work by car, bus or train. If 34 employees either drive or go by bus and the difference between those who drive and those … Continue reading

Posted in 7puzzleblog.com | Leave a comment

WELCOME

A warm welcome to 7puzzleblog.com and our compendium of daily number puzzles which we design for our many followers from over 160 countries & territories worldwide. We are also the place to visit for a variety of mathematical activities, including our exciting … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 322:

Today’s Challenge You have the same starting number and final answer, both 32, with lots of arithmetical steps in between, but the 10th step is missing! What should it be if it involves adding a whole number? Start with the … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 321:

Today’s Challenge This unique Mathematically Possible question asks you to consider three different combinations of numbers by using each number just once and + – × ÷ available.   2   6   10   3   7   10   4 … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 320:

Today’s Challenge In this particular number puzzle, three UNIQUE digits must be used to arrive at a specified target number; today is 42.  The formula is always the same – multiply two numbers together, then either add or subtract a third … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 319:

Today’s Challenge Apart from 8+3+2+1, list the FOUR other ways of making 14 when adding together 4 unique digits from 1-9 in our latest Kakuro-type challenge. The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing 49 … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 318:

Today’s Challenge . . . is a number puzzle associated with my board game, Mathematically Possible, an excellent resource involving mental arithmetic and strategy. Click the above link for details of our board game and online programme. Using the numbers 2, 5 and … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 317:

Today’s Challenge Here is a number puzzle similar in concept to my FlagMath card game. Many schools are now playing the various editions, so here’s a taster: Each of the eight letters, A-H, in the two sections contain a calculation with an … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 316:

Today’s Challenge . . . is one from our range of MATHELONA number puzzles now available in pocket book format.  Your task is to make all three lines work out arithmetically by replacing the 12 ◯’s with the following numbers: 0     … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 315:

Today’s Challenge Try this 10-step number trail involving all four arithmetical operations together with numbers from 1 to 10. Start off with the number 27, then: divide by 3 subtract 1 multiply by 6 add 2 ÷10 +8 –9 ×4 add … Continue reading

Posted in 7puzzleblog.com | Leave a comment