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 way of making 15 is 3+3+3+3+3. How many other ways can you find?
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 column contains the following seven numbers:
7 30 36 40 49 54 64
Using these seven numbers exactly once each, with + – × ÷ available to use in your calculation, can you arrive at the target number of 100?
The Factors Challenge
Which TWO numbers below are factors of 363?
3 5 7 9 11 13 15 17 19
The Mathematically Possible Challenge
Using 4, 8 and 12 once each, with + – × ÷ available, which FOUR numbers is it possible to make from the list below?
1 4 9 16 25 36 49 64 81 100
#SquareNumbers
The Target Challenge
Can you arrive at 363 by inserting 1, 2, 3, 4 and 5 into the gaps below?
- (◯×◯–◯)²×(◯–◯) = 363
Answers can be found here.
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