DAY 279:

Today’s Challenge

Try this number trail involving 14 arithmetical steps.  Start with 16, then:

  • ÷4
  • one-half of this
  • ×7
  • –7
  • ×8
  • add seventeen
  • +7
  • 1/10 of this
  • –2
  • ×13
  • one-third of this
  • ÷2
  • +43
  • 1/7 of this

What is your final answer?

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 3rd & 5th rows contain the following fourteen numbers:

6    7    13    16    21    25    36    42    45    50    66    80    81    84

From the list, how many multiples of 5 are present?

Make 279 Challenge

Can you arrive at 279 by inserting 2, 4, 6, 8 and 10 into the gaps below?

(◯³÷◯)+(◯÷◯)³+³√◯ = 279

Answers can be found here.

Click Paul Godding for details of online math 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Your email address will not be published.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 *