MH2006.Maths

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The number we get is 20-05-12-05-20-25-16-05, which is TELETYPE.

For infinite precision calculation: http://www.cis.ksu.edu/rhowell/calculator/calc.html

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The equations for each operator is a crypto: replace each number with a different number. But it's a different crypto for each operator! Hence why the order of operations is very important (and there are more parentheses than you would expect).

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From the webpage:

Addition

• 1+1=2
• 4+6=91
• 37+0=24
• 51+5=78
• 63+6=58

Consider:

• 0 => 6
• 1 => 2
• 2 => 4
• 3 => 3
• 4 => 5
• 5 => 8
• 6 => 7
• 7 => 9
• 8 => 0
• 9 => 1

So:

• 1+1=2 => 2+2=4
• 4+6=91 => 5+7=12
• 37+0=24 => 39+6=45
• 51+5=78 => 82+8=90
• 63+6=58 => 73+7=80

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Subtraction

• 5–6=1
• 92–0=3
• 94–7=8
• 71–3=33
• 6–2=8

Consider:

• 0 => 6
• 1 => 4
• 2 => 3
• 3 => 7
• 4 => 0
• 5 => 9
• 6 => 5
• 7 => 8
• 8 => 2
• 9 => 1

So:

• 5-6=1 => 9-5=4
• 92-0=3 => 13-6=7
• 94-7=8 => 10-8=2
• 71-3=33 => 84-7=77
• 6-2=8 => 5-3=2

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Multiplication

• 4×6=80
• 43×9=53
• 1×7=91
• 0×2=94
• 3×5=3

Consider:

• 0 => 8
• 1 => 5
• 2 => 4
• 3 => 0
• 4 => 2
• 5 => 6
• 6 => 9
• 7 => 7
• 8 => 1
• 9 => 3

So:

• 4x6=80 => 2x9=18
• 43x9=53 => 20x3=60
• 1x7=91 => 5x7=35
• 0x2=94 => 8x4=32
• 3x5=3 => 0x6=0

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Division

• 9÷5=7
• 64÷1=3
• 32÷0=87
• 89÷5=1
• 6÷4=5

Consider:

• 0 => 5
• 1 => 9
• 2 => 0
• 3 => 7
• 4 => 3
• 5 => 2
• 6 => 6
• 7 => 4
• 8 => 1
• 9 => 8

So:

• 9%5=7 => 8%2=4
• 64%1=3 => 63%9=7
• 32%0=87 => 70%5=14
• 89%5=1 => 18%2=9
• 6%4=5 => 6%3=2

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I tried replacing the digits with other digits, but the equations are inconsistant (if you assume that the operators are themsevles). Unless... the digits have a different translation depending on the operator...