# Category Archives: 7puzzleblog.com

## day/dydd 364 at 7puzzleblog.com

The Main Challenge You have been given a starting number of 7. Carry out the following 28 calculations to achieve the final answer. Will you have the stamina to get it right? Here we go! Start with 7, then: +19 . … Continue reading

## day/dydd 363 at 7puzzleblog.com

The Main Challenge Your task is to make the target number of 15 by adding together five numbers. You are limited to using 1 to 5, but these can be used any number of times in each calculation. One such … Continue reading

## day/dydd 362 at 7puzzleblog.com

The Main Challenge This a number puzzle similar to my Mathelona series of challenges, but much more difficult. Your task is to fill all 24 gaps below with the numbers 1-24. Each number should appear once each and ALL eight lines/equations must … Continue reading

## day/dydd 361 at 7puzzleblog.com

The Main Challenge You’ve rolled the numbers 2, 2 and 2 with your three dice. Using these once each, with + – × ÷ available, which FIVE target numbers from 1-10 is it possible to make? The 7puzzle Challenge The playing board of the 7puzzle game is … Continue reading

## day/dydd 360 at 7puzzleblog.com

The Main Challenge Players must multiply two numbers together, then either add or subtract the third number to achieve your target answer of 25, so the formula is (a×b)±c, where a b c are three UNIQUE digits from 1-9. One … Continue reading

## day/dydd 359 at 7puzzleblog.com

The Main Challenge … involves number combinations and addition, both necessary to master if players are to successfully complete the fabulous Kakuro puzzle. As well as 9+8+7+1 (or 9871), list the five other ways of making 25 when adding together FOUR unique … Continue reading

## day/dydd 358 at 7puzzleblog.com

The Main Challenge The American maths card game, 24game, can be both frustrating and addictive. Your task is to arrive at the target answer of 24 by using the four digits shown in each of the three groups below, just once each … Continue reading

## day/dydd 357 at 7puzzleblog.com

The Main Challenge An 11-step number trail involving all four arithmetical operations. Start with the number 8, then: multiply by 5 25% of this –5 add twenty-two 1/3 of this ×4 subtract twenty-four +9 divide by 7 add three ÷3 What is your final … Continue reading

## day/dydd 356 at 7puzzleblog.com

The Main Challenge Using the numbers 1, 4 and 10 once each, with + – × ÷ available, can you find the EIGHT whole numbers from 1-30 it is mathematically possible to make? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid … Continue reading

## day/dydd 355 at 7puzzleblog.com

The Main Challenge If the number sequence 1 10 19 28 37 … is continued, which is the ONLY number from the following list that will appear later in the sequence? 105 115 125 135 145 155 165 175 185 195 The 7puzzle Challenge The playing … Continue reading