DAY 323:

Today’s Challenge

Another number puzzle associated with our board game, Mathematically Possible, an excellent resource involving mental arithmetic and strategy. Further details can be found by clicking the link.

Using the numbers 1, 3 and 6 once each, with + – × ÷ available, which one of the following numbers is NOT mathematically possible to make?

2      4      6      8      10      12      15      18      21      24

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 1st & 7th columns of the playing board contain the following fourteen numbers:

5    9    13    21    22    24    27    28    32    50    55    56    60    66

Which two numbers both become square numbers when 9 is added to them?

Make 323 Challenge

Can you arrive at 323 by inserting 2, 3, 3, 4 and 4 into the gaps below?

◯⁴+◯³+◯²–◯×◯ = 323

Answers can be found here.

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

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