Today’s Challenge
Can you replace the 12 ◯’s below with the twelve numbers 0, 1, 1, 2, 2, 3, 3, 4, 6, 6, 7 and 7 so that all three lines work out arithmetically?
◯ + ◯ = 2 = ◯ – ◯
◯ + ◯ = 9 = ◯ × ◯
◯ + ◯ = 7 = ◯ ÷ ◯
Click MATHELONA for details of the above number puzzle if you want to try more!
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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 6th & 7th rows of the playing board contain the following fourteen numbers:
4 5 11 12 18 20 24 27 30 33 49 56 70 77
What is the sum of the factors of 60?
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Answers
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