The Main Challenge
Clues are given to help you find a particular number from the following facts:
- I am represented by just one word when written in English,
- On one side of me is a multiple of 3, on the other side is a multiple of 4,
- When you add 8 to me, I become a square number.
Who am I?
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 & 6th columns contain the following fourteen numbers:
3 6 7 20 30 36 40 42 49 54 63 64 72 77
Can you find four different numbers from the list that have a sum of exactly 100?
The Factors Challenge
Which is the ONLY number below that is a factor of 339?
3 5 7 9 11 13 15 17 19
The Mathematically Possible Challenge
Using 2, 9 and 12 once each, with + – × ÷ available, which are the only TWO numbers it is possible to make from the list below?
11 22 33 44 55 66 77 88 99 110
#11TimesTable
The Target Challenge
Can you arrive at 339 by inserting 2, 3, 5, 6 and 7 into the gaps below?
- (◯²×◯×◯)–(◯×◯) = 339
Answers can be found here.
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