| Flap 1 | Flap 2 |
| Divisibility Rules of 3 | Sum of the digits can be divided by 3 |
| Divisibility Rules of 4 | if the number formed by the last two digits is divisible by 4 |
| Divisibility Rules of 6 | if a number is divisible by 2 and 3 |
| 0/2 | 0 |
| 2/0 | undefined |
| .2 | 1/5 |
| .66 | 2/3 |
| .33 | 1/3 |
| .4 | 2/5 |
| .6 | 3/5 |
| .8 | 4/5 |
| Compound Interest | Interest rate is divided by the number of times compounded throughout the year |
| Average/Mean | total sum of items/total number of items |
| Median | ordered #s in which the middle number is picked |
| Mode | number appearing most frequently |
| Range | smallest number subtracted from the largest |
| 2^6 x 2^2 | 2^8 |
| 2^6 / 2^2 | 2^4 |
| (2^6)^2 | 2^12 |
| 12^1 | 12 |
| 12^0 | 1 |
| r x t | d |
| (x+2)(x+5) | x^2+7x+10 |
| (x+y)^2 | x^2+2xy+y^2 |
| (x+y)(x-y) | x^2-y^2 |
