DAY 321:

Today’s Challenge

This unique Mathematically Possible question asks you to consider three different combinations of numbers by using each number just once and + – × ÷ available.

  •   2   6   10
  •   3   7   10
  •   4   8   10

What is the only target answer from 10-30 that can be made by ALL three combinations?

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 5th & 6th columns of the playing board contain the following fourteen numbers:

7    8    11    14    18    25    30    36    40    44    49    54    64    84

How many cube numbers are listed?

Make 321 Challenge

Can you arrive at 321 by inserting 3, 4, 5, 6 and 7 into the gaps below?

[((◯–◯)×◯)²+◯]×◯ = 321

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Your email address will not be published.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 *