On the Subject of Encrypted Equations

The module everyone hated the moment they saw what an "equation" looked like.

  • This module contains a 12-button keypad, a large display containing an equation, and a clear and submit button above it.
  • The equation has been encrypted in a way where shapes, letters, and symbols represent numbers and operations.
  • Decrypt the equation, then solve it, rounding to the nearest thousandth if necessary.
  • Important: Any rounding should be done as commercial rounding.

Section 1: Shapes

  • Every shape translates to a number value.
  • This is the starting value for determining what the value actually is.
ShapeValue ShapeValue ShapeValue ShapeValue
0 5 10 35
1 6 15 40
2 7 20 45
3 8 25 50
4 9 30 100

Section 2: Letters/Symbols

  • There will be a letter or symbol inside the shape.
  • The letter/symbol translates to an operation and another value.
  • Apply this to the value obtained from the shape.
  • Important: Round to the nearest thousandth after calculating.
L/SValue L/SValue L/SValue L/SValue
A+1 F÷2 #+5 %+10
B+3 G+2 H×3 R-5
C-2 π×1.5 O-1 =+4
D-4 S÷1.5 ?×10 /×4
E×2 N-6 K÷5 \÷10

Section 3: Surrounding Symbols

  • A symbol may surround the shape.
  • This translates to another operation and value.
  • Find the intersection between the symbol, and the compass direction the symbol is located in, on the table on the next page.
  • No symbol = Skip this section.
  • Apply this to the current value.
  • Important: Round to the nearest thousandth after calculating.
  • Also important: This is the final value unless something in Sect. 6 applies.
  • Pictures of the symbols appear as if they are on the top of the symbol (North).
  • Symbols are rotation-locked. Example: A horizontal line on the top of the symbol and a vertical line on the side of a symbol are both on the second row. A vertical line on the top of the symbol and a horizontal line on the side of a symbol are both on the third row.
NorthEastSouthWest
+1-2×3+3
-×1.5÷5-1÷1.5
|-4+2×2×5
+4÷10÷2-3

Section 4: Operations

  • The operations between numbers are encrypted as well.
  • The circle next to each is for location reference.
+
-
×
÷
+
-
×
÷

Section 5: Parentheses

  • The parentheses are encrypted just like everything else.
  • Their appearance dictates their location.
Current Pair Opposite Pair Current Pair Opposite Pair

Section 6: Other

  • An "I" in the top-right corner of the shape symbolizes that the final value must be inverted (multiplied by -1).
  • An "A" in the top-right corner of the shape symbolizes that the final value must be the absolute value of the current value.
  • An "S" in the top-right corner of the shape symbolizes that the final value must be squared.
  • A "C" in the top-right corner of the shape symbolizes that the final value must be cubed.
  • Important: Round to the nearest thousandth after calculating.

Section 7: Solving

  • Round to the nearest thousandth after:
    • Calculating a shape/letter/symbol combination.
    • Finding the total of the pair inside the parentheses.
    • Calculating the final total.
  • Type the final answer into the display using the 12-button keypad.
  • When inputting, the display will change from the equation to your current input.
  • Press the clear button ("C" button) to erase your current input and switch back to the equation.
  • Press the submit button ("S" button) once you finish inputting your solution.
  • Submitting a wrong solution will result in strikes.
  • If, by any chance, the answer is undefined, simply hit submit without entering anything.