DAY 3:

Today’s Challenge

Using 2, 5 and 6 just once each, and with + – × ÷ available, which are the only THREE target numbers from 20-30 inclusive that are mathematically possible to achieve?

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 & 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

List THREE different numbers that total 100.

Make 3 Challenge

Can you arrive at 3 by inserting 1, 4, 6 and 8 into the gaps on each line?

  •  +◯+–◯ = 3
  •  (◯×◯)÷(◯×◯) = 3
  •  (◯+◯)÷◯+◯ = 3
  •  ◯–(÷◯+) = 3
  •  ◯–◯²–◯²÷◯ = 3

Answers can be found here.

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

This entry was posted in 7puzzleblog.com. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *