Today’s Challenge
List SEVEN different positive whole numbers that total 100 and follow these rules:
- each number must be at least 4 away from its nearest neighbour,
- the list must contain at least three square numbers.
Can you find at least one solution?
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 6th & 7th rows of the playing board contain the following fourteen numbers:
4 5 11 12 18 20 24 27 30 33 49 56 70 77
What is the sum of the multiples of 4?
Make 92 Challenge
Can you arrive at 92 by inserting 2, 4, 10 and 12 into the gaps on each line?
- ◯×◯×◯+◯ = 92
- ◯²–(◯+◯)÷◯ = 92
- ◯×(◯–◯)–◯ = 92
Answers can be found here.
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