Today’s Challenge
Here’s a 10-step number trail involving the four arithmetical operations and the numbers 1, 2 and 3. Starting with 10, carry out these 10 steps. What is your final answer?
- add 2
- ×1
- ÷3
- –2
- multiply by 3
- +1
- subtract 3
- divide by 1
- ×2
- take away two
Also try three further challenges using starting numbers of 7, 4 and 1 respectively. What are those answers?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up to 84.
The 1st & 5th rows contain the following fourteen numbers:
2 6 7 9 14 15 16 21 22 40 50 72 81 84
Find two separate pairs of numbers that each have a difference of 44.
Answers can be found here.
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