## 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 this final value must be inverted (multiplied by -1).
• An “A” in the top-right corner of the shape symbolizes that this final value must be the absolute value of the current value.
• An “S” in the top-right corner of the shape symbolizes that this final value must be squared.
• A “C” in the top-right corner of the shape symbolizes that this 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.