DAY 303:

The Main Challenge

Using 1, 5 and 10 once each, with + – × ÷ available, list the EIGHT different even-numbered target numbers that are possible to make from 2-60.

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 6th & 7th rows contain the following fourteen numbers:

4    5    11    12    18    20    24    27    30    33    49    56    70    77

What is the sum of the multiples of 5?

The Factors Challenge

Which of the following numbers are factors of 303?

3     5     7     9     11     13

The Mathematically Possible Challenge

Using 38 and 10 once each, with + – × ÷ available, which is the ONLY number it is possible to make from the list below?

10    20    30    40    50    60    70    80    90    100

#10TimesTable

The Target Challenge

Can you arrive at 303 by inserting 1, 2, 3, 4 and 5 into the gaps below?

  •  (◯⁴–◯²–◯)÷(◯×◯) = 303

Answers can be found here.

Click Paul Godding for details of online maths tuition.

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

Leave a Reply

Your email address will not be published.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