This colorful printable combines outer space with double-digit addition--making for an exciting math learning experience for your second grader!

Mastering subtraction is a lot like mastering baseball - it takes practice. Students can practice their subtraction skills by using the regrouping method.

Ask your second grader to help out Ken the Carpenter, and his double-digit addition skills will get a boost, too!

Hurry! If these numbers aren't added quickly using regrouping, they'll pop!

Practice adding tens with a visual model in this helpful worksheet!