Today’s Challenge
Using a mixture of the four groups of numbers 3 3 3 or 4 4 4 or 5 5 5 or 6 6 6, with + – × ÷ available to use, there are only six target numbers that it is possible to make in the range 10-30.
One of them is 12, which can be made by doing 3×3+3 or 4+4+4. Can you find the other five numbers it is possible to make when using one (or more) of the above groups?
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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 rows of the playing board contain the following fourteen numbers:
6 7 8 16 17 21 28 48 50 55 63 64 81 84
Which number is the product of two other numbers on the list?
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Answers
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