DAY 1:

Today’s Challenge

You’re playing Roll3Dice and have rolled the numbers 1, 2 and 4 with your three dice.

This is a truly unique combination being the only one possible where you can make all ten target numbers from 1-10, with + – × ÷ available, as seen below.

Can you insert 1, 2 and 4 into the gaps on each line so all the calculations work out?

  •  ◯–(◯+◯)  =  1
  •  ◯×◯–◯  =  2
  •  ◯÷◯+◯  =  3
  •  ◯×(◯–◯)  =  4
  •  ◯+◯–◯  =  5
  •  ◯×◯+◯  =  6
  •  ◯×◯–◯  =  7
  •  ◯×◯×◯  =  8
  •  ◯×◯+◯  =  9
  •  ◯×(◯+◯)  =  10

Visit Roll3Dice.com for full details.

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 1st & 2nd rows of the playing board contain the following fourteen numbers:

2   8   9   14   15   17   22   28   40   48   55   63   64   72

What is the sum of all the multiples of 5?

Make 1 Challenge

Can you arrive at 1 by inserting 2, 4, 6 and 8 into the gaps on each line?

  •  (+◯)÷(◯+◯) = 1
  •  (◯×◯)÷(◯+◯) = 1
  •  (◯–◯)–(◯÷◯) = 1
  •  (◯+◯–◯)÷◯ = 1
  •  ◯²÷(◯+◯+◯) = 1

Answers can be found here.

Click Paul Godding for details of online maths tuition. Wherever you are in the world, please get in touch.

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