Toggle Navigation
Games
Blog
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
Contact us
Help center
Sign in
Study
add, minus 11 to 20
0
%
0
0
0
Back
Restart
Nineteen minus ______ is thirteen.
six
Oops!
Okay!
Twelve minus four is ______.
eight
Oops!
Okay!
twenty ... twelve is eight
minus
Oops!
Okay!
fifteen plus ... is seventeen
two
Oops!
Okay!
one plus nineteen is ...
twenty
Oops!
Okay!
Ten plus zero is ______.
ten
Oops!
Okay!
Twenty minus ______ is eleven.
nine
Oops!
Okay!
______ minus six is four.
ten
Oops!
Okay!
fifteen ... eleven is four
minus
Oops!
Okay!
Seven plus ______ is ten.
three
Oops!
Okay!
______ plus seven is thirteen.
six
Oops!
Okay!
eleven minus ... is six
five
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies