# day/dydd 278 at 7puzzleblog.com

The Main Challenge

Can you arrive at the target answer of 7 in both lines by using each of the numbers 0.4, 0.5, 1 and 2 exactly once in each line?

•  ◯÷◯+◯÷◯ = 7
•  ◯÷(◯×◯)+◯ = 7

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 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

List four different numbers that have a sum of 100.

The Factors Challenge

Which of the following numbers are factors of 278?

4     6     8     10     12     14     None of them

The Mathematically Possible Challenge

Using 27 and 10 once each, with + – × ÷ available, which are the only THREE numbers it is possible to make from the list below?

6    12    18    24    30    36    42    48    54    60

#6TimesTable

The Target Challenge

Can you arrive at 278 by inserting 1, 2, 3, 4 and 5 into the gaps below?

•  (◯²×²◯×◯)×◯ = 278

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