Use this math worksheet to round three-digit numbers using vertical number lines.

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

Kids try to "catch" the bouncy balls on this second grade math worksheet by solving subtraction problems with three-digit numbers using regrouping.

Use this glossary with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

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

Use these vocabulary cards with the EL Support Lesson Plan: Writing Three-Digit Number Names.

Use these vocabulary cards with the EL Support Lesson Plan: Thinking About Three-Digit Numbers.

Get even more practice performing three-digit subtraction using an open number line with this second-grade math worksheet!

Children stretch their regrouping skills as they solve three-digit subtraction word problems.

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

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

How are your students coming along in their three-digit addition skills? Use this spring math assessment to gauge your students' abilities to add within 1,000.

Are your students' math skills greater than or less than your expectations? Use this quick assessment to gauge your second graders' understanding of three-digit numbers.

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