DAY 250:

Today’s Challenge

The following clues are given to help you find a particular number:

  • I am a 2-digit number
  • my two digits have a difference of one
  • I am a multiple of 7
  • the number immediately below me is a prime number

Who am I?

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 1st & 4th rows of the playing board contain the following fourteen numbers:

2    3    9    10    14    15    22    32    35    40    44    54    60    72

How many multiples of 4 are present?

Make 250 Challenge

Can you arrive at 250 by inserting 5, 10, 15, 20 and 25 into the gaps below?

◯×◯–(◯²+◯+◯) = 250

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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