The Main Challenge
Using the numbers 2, 3 and 6 once each, with + – × ÷ available, list the 14 target numbers from 1-30 it is mathematically possible to achieve.
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 3rd & 5th rows contain the following fourteen numbers:
6 7 13 16 21 25 36 42 45 50 66 80 81 84
There are four square numbers present. What is the sum of their square roots?
The Factors Challenge
Which is the only number listed that is not a factor of 276?
2 3 4 6 9 12
The Mathematically Possible Challenge
Using 2, 7 and 10 once each, with + – × ÷ available, which THREE numbers is it possible to make from the list below?
4 8 12 16 20 24 28 32 36 40
#4TimesTable
The Target Challenge
Can you arrive at 276 by inserting 1, 2, 3, 4 and 5 into the gaps below?
- (◯²–◯)×◯×◯×◯ = 276
Answers can be found here.
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