DAY 268:

The Main Challenge

Find the sum of the SEVEN different numbers in the range 65 to 85 that are either multiples of 9, 10, 11 or 12.

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 4th & 6th rows contain the following fourteen numbers:

3   5   10   12   18   20   32   33   35   44   49   54   56   60

What is the difference between the two highest multiples of 3?

The Factors Challenge

Which of the following numbers are factors of 268?

2     4     6     8     10     12     14

Hint: Use the ‘bus stop’ method of division to see which of the above numbers divide exactly into 268 ]

The Mathematically Possible Challenge

Based on our best-selling arithmetic board game.

Using 37 and once each, with + – × ÷ available, which are the only TWO numbers it is possible to make from the list below?

9    18    27    36    45    54    63    72    81    90

#9TimesTable

The Target Challenge

Can you arrive at 268 by inserting 30, 60, 90, 120 and 150 into the gaps below?

  •  (◯+◯+◯)(◯÷◯) = 268

Answers can be found here.

Click Paul Godding for details of online maths tuition.

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