Read the following facts:
- I am a 2-digit number,
- both my digits are odd,
- the sum of both digits is less than 10,
- my 1st digit is smaller than my 2nd digit, and
- I am a multiple of 3.
Which number am I?
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 3rd & 4th rows of the playing board contain the following fourteen numbers:
3 10 13 25 32 35 36 42 44 45 54 60 66 80
From the list, what is the sum of the multiples of 10?
Make 219 Challenge
Can you arrive at 219 by inserting 4, 5, 6 and 7 into the gaps below?
◯²×◯+8×◯+◯ = 219
Answers can be found here.
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