DAY 143:

The Main Challenge

Start with the number 50, then:

+27    42    divide by 5    ×4    +50%    two-thirds of this    ÷7    =   ?

What is your final answer to this 7-step number trail?

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 & 4th rows of the playing board contain the following fourteen numbers:

2   3   9   10   14   15   22   32   35   40   44   54   60   72

What is the difference between the highest odd number and lowest multiple of 11?

The Mathematically Possible Challenge

Based on our best-selling arithmetic board game.

Using the three digits 2, 6 and 9 once each, with + – × ÷ available, which are the SIX numbers it’s 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 143 by inserting 3, 4, 7 and 10 into the gaps on each line?

  •  (◯+◯)×(◯+◯) = 143
  •  ◯³–◯²×double(◯–◯) = 143

Answers can be found here.

Click Paul Godding for details of online maths tuition.

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