DAY 128:

Today’s Challenge

Using all four decimal numbers 0.4, 0.8, 1.2 and 3.5 once each, and with + – × ÷ available, can you arrive at the target answer of 7?

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 2nd & 4th rows of the playing board contain the following fourteen numbers:

3   8   10   17   28   32   35   44   48   54   55   60   63   64

What is the difference between the two prime numbers listed above?

Make 128 Challenge

Can you arrive at 128 by inserting 4, 8, 10 and 12 into the gaps on each line?

  •  ◯×◯+◯×◯ = 128
  •  ◯×◯+◯²–◯ = 128
  •  ◯⁴×◯÷(◯+◯) = 128

Answers can be found here.

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