DAY 361:

The Main Challenge

You’ve rolled the numbers 2, 2 and 2 with your three dice.  Using these once each, with + – × ÷ available, which FIVE target numbers from 1-10 is it possible to make?

Visit Roll3Dice.com and the hashtags #Roll3Dice or #R3D for details of our initiative.

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 4th column contains the following seven numbers:

3     6     20     42     63     72     77

Using these seven numbers exactly once each, with + – × ÷ available to use in your calculation, can you arrive at the target number of 100?

The Factors Challenge

Which is the ONLY number below that is a factor of 361?

3    5    7    9    11    13    15    17    19

The Mathematically Possible Challenge

Using 48 and 12 once each, with + – × ÷ available, which FIVE numbers is it possible to make from the list below?

10    20    30    40    50    60    70    80    90    100

#10TimesTable

The Target Challenge

Can you arrive at 361 by inserting 1, 2, 2, 3 and 3 into the gaps below?

  •  ◯³×◯²×(◯+◯)+◯ = 361

Answers can be found here.

Click Paul Godding for details of online maths tuition.

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