DAY 9:

Today’s Challenge

. . . is from the excellent 24game. Using the numbers 2, 4, 6 and 8 once each, and with all four operations + – × ÷ available, show how you can reach the target number of 24.

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 3rd & 4th rows of the playing board contain the following fourteen numbers:

3   10   13   25   32   35   36   42   44   45   54   60   66   80

From the list, find the THREE pairs of numbers that have a sum of 57.

Make 9 Challenge

Can you arrive at 9 by inserting 3, 4, 5 and 6 into the gaps on each line?

  •  ◯×◯–(◯+) = 9
  •  ◯+×(–◯) = 9
  •  ◯²–◯×(÷◯)² = 9
  •  ◯+(◯+◯)÷◯ = 9

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Your email address will not be published.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 *