DAY 352:

Today’s Challenge

Follow the rules below and eliminate every number from a given list, except one. Which number will be the last one to remain?

List the multiples of 10 from 10 to 100 inclusive, then eliminate:

  • multiples of 4
  • factors of 100
  • multiples of 3

Which is the only number that remains?

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 columns of the playing board contain the following fourteen numbers:

5    7    9    24    28    30    32    36    40    49    50    54    64    66

How many multiples of 4 are listed?

Make 352 Challenge

Can you arrive at 352 by inserting 2, 4, 8, 11 and 16 into the gaps on each line?

  •  (◯+◯)×(◯+◯)–◯³ = 352
  •  ◯²×◯×◯×◯÷◯ = 352

Answers can be found here.

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