Save
or

or

taken

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

focusNode
Didn't know it?
click below

Knew it?
click below
Don't Know
Remaining cards (0)
Know
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

# Divisibility Rules

NumberRule
ONE All numbers are divisible by 1.
TWO If a number is EVEN it is divisible by 2!
THREE If the sum of the numbers digits are divisible by 3 the number itself is divisible by three!
FOUR If the LAST TWO DIGITS are divisible by 4 the whole number.
FIVE If the last digit is ZERO or FIVE it is divisible by 5.
SIX If the number is divisible by 2 OR 3 it is divisible by six.
Nine If the SUM of the numbers digits are divisible by 9 the number itself is divisible by 9.
Ten If the last digit is Zero it is divisible by 10.
PRIME A number is considered PRIME if it is only divisible by itself and one.
Created by: MikeC1127
Popular Math sets

Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

• SPACEBAR - flip the current card
• LEFT ARROW - move card to the Don't know pile
• RIGHT ARROW - move card to Know pile
• BACKSPACE - undo the previous action

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
 "Know" box contains: Time elapsed: Retries:
restart all cards