| Symbol | Name | % Correct |
|---|---|---|
| + | add | 97%
|
| x | multiply | 93%
|
| / or ÷ | divide | 92%
|
| % | percent | 92%
|
| π | pi | 91%
|
| = | equal | 89%
|
| - | subtract | 88%
|
| ∞ | infinity | 85%
|
| º | degree | 74%
|
| < | less | 74%
|
| ! | factorial | 70%
|
| √ | root | 68%
|
| > | more | 66%
|
| ^ | exponent | 57%
|
| ∠ | angle | 56%
|
| | x | | absolute value | 54%
|
| i | imaginary | 48%
|
| . | decimal | 45%
|
| φ | phi | 42%
|
| τ | tau | 34%
|
| ≪ | much less | 21%
|
| ≫ | much more | 20%
|
| – | fraction | 19%
|
| ‰ | per-mille | 15%
|
| ≈ | approximation | 11%
|
| P(S) | power set | 9%
|