| Hint | Answer | % Correct | |
|---|---|---|---|
| +5 | 5,10,15,20,25 | 30 | 99%
|
| -2 | 2,4,8,16,32 | 64 | 97%
|
| x10 | 3,30,300,3000 | 30,000 | 96%
|
| +1 | 463,464,465 | 466 | 95%
|
| -6 | 87,81,75,69 | 63 | 92%
|
| ÷2 | 120,60,30 | 15 | 86%
|
| x100 | 1,100,10000 | 1,000,000 | 84%
|
| -15 | 75,60,45,30 | 15 | 83%
|
| ÷10 | 100,10,1 | 0.1 | 82%
|
| ÷2 | 1/2,1/4,1/8 | 1/16 | 82%
|
| Fibonacci | 1,1,2,3,5,8 | 13 | 76%
|
| x3 | 30,90,270, | 810 | 75%
|
| x5 | 5,25,125 | 625 | 74%
|
| -9 | 98,89,80 | 71 | 65%
|
| +17 | 28,45,62,79 | 96 | 65%
|
| x(-2) | 2,-4,8, | -16 | 60%
|
| +45 | 45,90,135 | 180 | 55%
|
| ÷10 | 34,3.4,0.34 | 0.034 | 52%
|
| x10 | 1/200, 1/20, 1/2 | 5 | 52%
|
| ² | 2,4,16 | 256 | 45%
|