Today’s Challenge
One of our easier MATHELONA-style challenges, but still utilising the four arithmetic operations. Replace the ◯’s with the digits 1, 2, 2, 3, 4, 4, 5 and 6 so both lines work out:
◯ + ◯ = 6 = ◯ × ◯
◯ – ◯ = 2 = ◯ ÷ ◯
If you enjoy this type of number puzzle, click this MATHELONA link for details of our pocket book of challenges.
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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 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
What is the difference between the two multiples of 7?
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Answers
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