Use these cards to help students see the difference between adding three-digit numbers using the standard algorithm and expanded notation.

Use these vocabulary cards with the EL Support Lesson Plan: Compare & Contrast Addition Strategies.

Use these strategy cards to help students develop their compare and contrast skills, along with deepening their understanding of three-digit addition.

Can your second grader help an outgoing octopus with some two-digit subtraction problems?

Use these vocabulary cards with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

Want to bulk up your second grader's two-digit addition skills? This super hero-themed worksheet will do the trick!

Does your second grader need a math boost? Help her get a grip on her two-digit addition skills--and a super power--with this dynamic worksheet.

3...2...1...go! Students will apply their knowledge of addition facts with this speedy worksheet!

Students solve addition problems with two-digit addends and no regrouping on this fruit-themed worksheet.

Two-digit addition got your second grader down? Liven up math practice with this extraordinary worksheet.

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

Is your second grader struggling with two-digit addition? This super hero worksheet should motivate him to practice math!

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

Give your second grader's two-digit addition skills some practice time with a worksheet that's heavy on learning--and fun!

Kids solve addition problems with two-digit addends to move from ice chunk to ice chunk and help Polly get to her cub on this second grade math worksheet.

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

Give your second grader a helping hand with two-digit addition with an addition worksheet with a fun, super hero theme.

Help your second grader strengthen her two-digit addition skills ... and pretend she's a super hero at the same time!

This fun worksheet is sure to motivate your second grader to practice two-digit addition, and it's great for mental math, too!

Give your second grader's two-digit addition skills a healthy work out with a worksheet that's heavy on learning--and fun!

Solving these two-digit addition problems will lead your second grader to discovering the true name of this mystery super hero!

Spark your second grader's interest in practicing math with a two-digit addition worksheet--complete with a super hero and his special power!

Practice is the best medicine for a second grader struggling with two-digit addition. This fun worksheet's sure to help him out!

Know a second grader who could use stronger math skills? Give her a helping hand with this super power-infused, two-digit addition worksheet.

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

Looking for a fun way to boost your second grader's two-digit addition skills? This super power-infused worksheet will actually motivate her to practice math.

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

To determine this hero's mystery code name, your second grader needs to find the answers to this page full of two-digit addition problems.