| Sign | Answer | % Correct |
|---|---|---|
| + | Addition | 98%
|
| = | Equal | 94%
|
| ÷ | Division | 93%
|
| × | Multiplication | 93%
|
| π | Pi | 91%
|
| % | Percent | 90%
|
| - | Subtraction | 89%
|
| < | Less Than | 87%
|
| ∞ | Infinity | 85%
|
| √ | Square Root | 85%
|
| > | Greater Than | 84%
|
| x² | Exponent | 78%
|
| ∆ | Delta | 71%
|
| ! | Factorial | 68%
|
| Ω/ω | Omega | 68%
|
| ∑ | Sigma | 65%
|
| | x | | Absolute Value | 63%
|
| x° | Degree | 58%
|
| ∫ | Integral | 58%
|
| ≈ | Approximate | 57%
|
| Φ | Phi | 52%
|
| f | Function | 49%
|
| ∪ | Union | 47%
|
| e | Euler's Number | 43%
|
| τ | Tau | 36%
|
| i | Imaginary Unit | 34%
|
| ∩ | Intersection | 31%
|
| ∈ | Member of | 12%
|