| Hint | Answer | % Correct |
|---|---|---|
| + | add | 96%
|
| ÷ | divide | 88%
|
| - | minus | 87%
|
| = | equals | 81%
|
| π | pi | 81%
|
| > | greater than | 70%
|
| < | less than | 70%
|
| ∞ | infinity | 62%
|
| ∑ | sum of | 41%
|
| ∴ | therefore | 41%
|
| ! | factorial | 36%
|
| · | multiply | 32%
|
| ≈ | approximately equals | 28%
|
| ∫ | integrate | 15%
|
| ∵ | because | 13%
|