×
Advertisement
login

One atta Time

Want to help support the site and remove the ads? Become a patron via patreon or donate through paypal.
Reset Score Skip Problem
Customize
hide keyboard
Generate Results Printout
Correct 0 +1 Incorrect 0 +1 Score 0
Waiting on your teacher to grade.
COMPLETE!
Correct!
Incorrect
Assignment Complete
Determine which letter best represents the missing fact from the fact family.
7 + 6 = 13
6 + 7 = 13
13 - 7 = 6
Check Answer ✔ Submit
×
Facts
Within 20
Within 100
Within 1000
Changes here will reset your score
I understand
Save
×
Name
Advertisement