Keep your second grader entertained--and teach her two-digit addition skills at the same time--with this super hero-themed worksheet.

Groups of ten make addition a breeze! Use this nifty worksheet to learn about the "circle ten" shortcut.

Your young learner can have a blast experimenting with addition facts in the Math Lab!

Two-digit addition troubling your second grader? The only way to get the concept down is practice, practice ... and more practice!

To figure out the name of the mystery super hero, your child simply needs to answer a page full of two-digit addition problems!

Has your second grader ever wanted to play super hero? Let him do just that with this two-digit addition worksheet.

Guide your second grader through this fun, two-digit addition worksheet to boost her mental math skills.