DAY 281:

Today’s Challenge

If you wrote down all single-digit numbers and the factors of 80, how many different numbers would be written on your list?

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 1st & 6th rows contain the following fourteen numbers:

2    5    9    12    14    15    18    20    22    33    40    49    56    72

List eight pairs of numbers that have a sum which is also listed.

Make 281 Challenge

Can you arrive at 281 by inserting 1, 2, 3, 4 and 5 into the gaps below?

(◯³+◯²)×(◯–◯)+◯² = 281

Answers can be found here.

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