DAY 230:

Today’s Challenge

Use all three numbers in each of the five groups below, with + – × ÷ available, to try and make the target of 23. But for one of the groups it can’t be done. Which one?

  •   1    4    6
  •   2    5    5
  •   3    4    5
  •   3    4    6
  •   3    5    6

Full details of my number & strategy board game, click Mathematically Possible.

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 1st & 7th rows of the playing board contain the following fourteen numbers:

2    4    9    11    14    15    22    24    27    30    40    70    72    77

Which three different numbers have a sum of 77?

Make 230 Challenge

Can you arrive at 230 by inserting 2, 3, 5, 6 and 7 into the gaps below?

◯×(◯+◯)²+◯×◯ = 230

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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