Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


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.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
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

Patterns

QuestionAnswer
2 4 6 8 10 "???" 12 Add 2
15 18 21 24 27 "???" 30 Add 3
40 35 30 25 20 "???" 15 Subtract 5
72 64 56 48 40 "???" 32 Subtract 8
3 6 12 24 48 "???" 96 Multiply by 2
5 10 20 40 80 "???" 160 Multiply by 2
64 32 16 8 4 "???" 2 Divide by 2
243 81 27 9 3 "???" 1 Divide by 3
7 11 15 19 23 "???" 27 Add 4
50 45 40 35 30 "???" 25 Subtract 5
2 8 32 128 512 "???" 2048 Multiply by 4
96 48 24 12 6 "???" 3 Divide by 2
13 20 27 34 41 "???" 48 Add 7
100 90 80 70 60 "???" 50 Subtract 10
4 12 36 108 324 "???" 972 Multiply by 3
10 15 14 19 18 "???" 23 Add 5, then subtract 1
30 27 29 26 28 "???" 25 Subtract 3, then add 2
5 10 8 16 14 "???" 28 Multiply by 2, then subtract 2
40 44 42 46 44 "???" 48 Add 4, then subtract 2
12 18 15 21 18 "???" 24 Add 6, then subtract 3
18 24 30 36 42 "???" 48 Add 6
95 88 81 74 67 "???" 60 Subtract 7
6 18 54 162 486 "???" 1458 Multiply by 3
320 160 80 40 20 "???" 10 Divide by 2
11 20 29 38 47 "???" 56 Add 9
150 138 126 114 102 "???" 90 Subtract 12
4 16 64 256 1024 "???" 4096 Multiply by 4
729 243 81 27 9 "???" 3 Divide by 3
25 33 41 49 57 "???" 65 Add 8
200 185 170 155 140 "???" 125 Subtract 15
8 24 72 216 648 "???" 1944 Multiply by 3
625 125 25 5 1 "???" 0.2 Divide by 5
14 25 36 47 58 "???" 69 Add 11
180 164 148 132 116 "???" 100 Subtract 16
7 28 112 448 1792 "???" 7168 Multiply by 4
20 27 24 31 28 "???" 35 Add 7, then subtract 3
50 44 48 42 46 "???" 40 Subtract 6, then add 4
8 24 20 60 56 "???" 168 Multiply by 3, then subtract 4
100 90 95 85 90 "???" 80 Subtract 10, then add 5
12 20 16 24 20 "???" 28 Add 8, then subtract 4
Created by: MrLittle5
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:

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