DAY 265:

The Main Challenge

. . . is a typical challenge from the excellent American maths card game, 24game®.

Using the four numbers 2, 4, 4 and 9 once each, with + – × ÷ available, can you arrive at the target number of 24?

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 1st & 5th rows contain the following fourteen numbers:

2   6   7   9   14   15   16   21   22   40   50   72   81   84

Which two numbers, when 16 is added to them, each become a square number?

The Factors Challenge

Which of the following numbers are factors of 265?

3      5      7      9      11      13      15

The Mathematically Possible Challenge

Based on our best-selling arithmetic board game.

Using 37 and once each, with + – × ÷ available, which THREE numbers are NOT 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 265 by inserting 2, 4, 7, 8 and 10 into the gaps below?

  •  (◯²+◯–◯)×(◯÷◯) = 265

Answers can be found here.

Click Paul Godding for details of online maths tuition.

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