DAY 314:

Today’s Challenge

Today’s task, from the excellent and addictive American maths card game 24game, is to try and arrive at the target answer of 24 from each of the following seven groups of numbers by using the four digits once each and with + – × ÷ available.

But it is impossible to reach 24 with one of these seven groups; which one?

  •    2     2     2     3
  •    2     2     2     4
  •    2     2     2     5
  •    2     2     2     6
  •    2     2     2     7
  •    2     2     2     8
  •    2     2     2     9

Got an answer? Leave a comment below or e-mail me at paul@7puzzle.com.

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

What is the sum of the multiples of 7?

Make 314 Challenge

Can you arrive at 314 by inserting 4, 9, 16, 25 and 36 into the gaps below?

(◯+◯)×(◯–◯)–◯ = 314

Answers can be found here.

Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.

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