Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Divisibility Rules
| Term | Definition |
|---|---|
| divisible by 2 | last digit is even |
| divisible by 3 | sum of the digits is divisible by 3 |
| divisible by 4 | if the last two digits are divisible by 4 |
| divisible by 5 | if the last digit is 5 or 0 |
| divisible by 6 | if the number is even and divisible by 3 |
| divisible by 7 | Take the last digit, double it, and subtract it from the rest of the number; if the answer is divisible by 7 (including 0) |
| divisible by 8 | last three digits are divisible by 8 |
| divisible by 9 | sum of the digits is divisible by 9 |
| divisible by 10 | if the last digit is 0 |
| divisible by 11 | Add and subtract digits in an alternating pattern (add digit, subtract next digit, add next digit, etc). Then check if that answer is divisible by 11. |
| divisible by 12 | if the number is divisible by 3 & 4 |
Created by:
Lachelle
Popular ACT sets