Math Resources
Sharpen your skills with our essential training guides and cheat sheets.
Multiplication Table (12x12)
| x | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| 3 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 | 30 |
| 4 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | 32 | 36 | 40 |
| 5 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 |
| 6 | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 | 54 | 60 |
| 7 | 7 | 14 | 21 | 28 | 35 | 42 | 49 | 56 | 63 | 70 |
| 8 | 8 | 16 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 |
| 9 | 9 | 18 | 27 | 36 | 45 | 54 | 63 | 72 | 81 | 90 |
| 10 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
Pro Tip: Memorizing up to 12x12 is the foundation for Rush Mode.
Division Divisibility Rules
- 2: Last digit is 0, 2, 4, 6, or 8 (Even).
- 3: Sum of digits is divisible by 3.
- 5: Last digit is 0 or 5.
- 9: Sum of digits is divisible by 9.
- 10: Last digit is 0.
Common Power Numbers
Squares
12² = 144
15² = 225
25² = 625
Cubes
2³ = 8
5³ = 125
10³ = 1000
Mastery Concepts
Prime Numbers
Numbers only divisible by 1 and themselves.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47...
Percentages
Quick fraction conversions for speed.
25% = 1/433% = 1/350% = 1/275% = 3/4
Order of Ops
The PEMDAS / BODMAS sequence.
Parentheses, Exponents, Multi/Div, Add/Sub.