Monthly Archives: August 2018

DAY 229:

The Main Challenge There are five different 24game® challenges below. For each group of four numbers, your task is to arrive at the target answer of 24 by using each of the four digits exactly once, with + – × ÷ available: … Continue reading

Posted in 7puzzleblog.com | Leave a comment

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. These are designed for our many followers from over 160 countries & territories throughout the world. As well as our ever-expanding … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 228:

The Main Challenge You have been given a starting number as well as an end answer. There are seven arithmetical steps in all, but the middle step is missing! Start with the number 7, then: –2    ×4    +1  … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 227:

The Main Challenge Firstly, allocate each letter of the English alphabet a numerical value as follows: A=1, B=2, C=3 . . . Z=26.  When the values of the individual letters are added together, calculate the total value of our popular … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 226:

The Main Challenge Your task is to arrive at the target number of 47 by using all five numbers 1, 2, 3, 4 and 5 exactly once each. Can you arrive at 47 in two different ways? Remember, you have … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 225:

The Main Challenge Each of the five numbers below is the product of two prime numbers: 15     35     77     143     323 Which is the odd one out, and why? The 7puzzle Challenge The playing board of the … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 224:

The Main Challenge Today’s task is you multiply two numbers together, then either add or subtract the third number to achieve the target answer of 37. Using the formula (a×b)±c, where a, b and c are three unique digits from 1-9, … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 223:

The Main Challenge Try the following MATHELONA challenge, just like the ones in my number puzzle pocket book.  Further details can be found by clicking on MATHELONA. Your task is to make all three lines work out arithmetically by replacing the 12 ◯’s below … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 222:

The Main Challenge You’ve rolled the numbers 1, 3 and 3 with your three dice.  Using these once each, with + – × ÷ available, find the TWO target numbers from 1-10 that it is NOT possible to make. Visit Roll3Dice.com and the hashtag #Roll3Dice … Continue reading

Posted in 7puzzleblog.com | Leave a comment

DAY 221:

The Main Challenge Group the following numbers into three lots of three so the products of each of the triples are the same. What is this product? 3     4     5     6     7     8     28  … Continue reading

Posted in 7puzzleblog.com | Leave a comment