Word problems make for great assessment tools because they require a complete understanding of the math concepts. Use this assessment to evaluate your students' abilities to add and subtract three-digit numbers using mixed operation word problems.

Use this glossary with the EL Support Lesson Plan: Adding Within 20.

Use these vocabulary cards with the EL Support Lesson Plan: Adding Within 20.

Go over adding two-digit numbers to one-digit numbers with this helpful worksheet.

This colorful worksheet allows you to combine your second grader's love of art with at-home addition practice with adding double-digits!

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

Do your students know how to solve word problems without a given operation? This mixed operation assessment can help you gauge student understanding of two-digit subtraction and addition word problems.

Practice using place value charts to find sums with this addition worksheet for first and second graders!

Use your knowledge of place value to solve addition problems with this first- and second-grade worksheet!

Not only does this worksheet bolster kids' addition skills, it's a great mental math exercise, too.

Tackle two-digit addition with place value charts in this helpful worksheet!

Practice adding doubles with this colorful worksheet!

Use this visual model to practice adding 10 to two-digit numbers!

Practice adding multi-digit numbers in this second- and third-grade worksheet!

Tristan had 74¢ and Juniper gave him a quarter. How much does he have now? Kids will practice identifying coins and using the part-part-whole concept (number bonds) to solve money word problems in this two-digit addition worksheet.

Practice adding two-digit numbers with this compensation worksheet for second and third graders!

Learners will enjoy stacking and adding two-digit numbers with this appealing practice worksheet.

Learners will enjoy stacking and adding two-digit numbers with this appealing practice worksheet.

With this worksheet, your second graders will be adding up two-digit and three-digit numbers with ease.

Learn how to use doubles facts to solve other addition problems!

Is your child comfortable with adding double-digit numbers? If he's getting there here's a different take on addition problems!

Help students get a grasp on mentally adding or subtracting 10 from a multiple of 10 with this fun BINGO game!

Double the numbers equals double the fun! Practice adding with near-doubles in this engaging math worksheet.

Adding up big numbers can be tricky. Teach your budding mathematician a helpful trick to keep the numbers in line with carrying!

Measure your way to the right answer by using this handy number line to solve word problems about adding length.

Practice a helpful strategy for adding single-digit numbers in this worksheet, the second entry in a scaffolded series!

Strengthen your second grader's ability to tackle his addition facts by adding up the number strings, and uncover a fun fact when he's finished.

Practice three-digit addition using open number lines with this second-grade math worksheet!

Get more practice performing three-digit addition using open number lines with this second-grade math worksheet!

Get even more practice performing three-digit addition using open number lines with this second-grade math worksheet!