Today’s Challenge
In our latest MATHELONA challenge, can you replace the 12 ◯’s below with the following 12 numbers so all three lines work out arithmetically?
0 1 1 2 2 3 4 5 6 7 8 9
◯ + ◯ = 1 = ◯ – ◯
◯ + ◯ = 12 = ◯ × ◯
◯ + ◯ = 3 = ◯ ÷ ◯
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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 4th & 5th rows of the playing board contain the following fourteen numbers:
3 6 7 10 16 21 32 35 44 50 54 60 81 84
Which two different numbers have a sum of 100?
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Answers
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