Space Race | Two-Digit Addition - Adding 10 More Game

Space Race - Building skills in two-digit addition by adding 10 more creates a solid foundation in the understanding of number sense. Select the correct answer to get your character moving at top speed to win the race through space.

Common Core Standards

Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.