The Main Challenge
Using the numbers 1, 4 and 10 once each, with + – × ÷ available, can you find the EIGHT whole numbers from 1-30 it is mathematically possible to make?
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 2nd & 5th columns contain the following fourteen numbers:
2 8 10 11 14 16 18 25 33 44 45 48 70 84
How many more even numbers than odd numbers are listed?
The Factors Challenge
Which of the numbers below are factors of 356?
4 6 8 10 12 14 16 None of them
The Mathematically Possible Challenge
Using 4, 8 and 12 once each, with + – × ÷ available, which FIVE 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 356 by inserting 1, 2, 3, 4 and 5 into the gaps on each line below?
- (◯+◯)³+◯×◯+◯ = 356
- (◯⁴+◯³)×(◯+√(◯+◯)) = 356
Answers can be found here.
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