. . . is a number puzzle taken from my scrapbook of brainteasers, one of my very favourites and used regularly as a mental maths starter in my workshops over the years!
You have a 6-sector dartboard containing the numbers 16, 17, 23, 24, 39 and 40. Using some darts, your task is to achieve a score of EXACTLY 100 when adding your scores together. You can throw any number of darts and they can land in each sector more than once.
There is only ONE way of achieving 100. How can it be done?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 4th & 5th rows of the playing board contain the following fourteen numbers:
3 6 7 10 16 21 32 35 44 50 54 60 81 84
Which two pairs of numbers differ by 19?
. . . can be found when clicking this.