Numberman's Pizza Party | Two-Digit Addition - Adding 10 More Game

Numberman's Pizza Party - Building skills in two-digit addition by adding 10 more lays a strong foundation for number sense. Pizza, the ultimate power source, imbues Numberman with superhuman abilities. Select the correct answers to provide Numberman with his pizza-powered strength!

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.