# Monthly Archives: November 2018

## DAY 322:

The Main 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 an integer? Start with the number … Continue reading

## WELCOME

A warm Welsh ‘Croeso’ to 7puzzleblog.com and our compendium of daily number puzzles. Five challenges are posted each day, seven days a week, and designed for our many followers from nearly 170 countries & territories throughout the world. As well as our ever-expanding website … Continue reading

## DAY 321:

The Main 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   … Continue reading

## DAY 320:

The Main Challenge In this particular number puzzle, three UNIQUE digits from 1-9 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 … Continue reading

## DAY 319:

The Main Challenge Apart from 8+3+2+1, list the FOUR other ways of making 14 when adding together four 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 … Continue reading

## DAY 318:

The Main Challenge Using the numbers 2, 5 and 10 once each, with + – × ÷ available, which ELEVEN target numbers from 1-30 are mathematically possible to achieve? This is a number puzzle associated with our board game, Mathematically Possible, an excellent resource involving mental … Continue reading

## DAY 317:

The Main 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 … Continue reading

## DAY 316:

The Main Challenge 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 filling the 12 gaps with the following numbers: 0     0     … Continue reading