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.

Use these vocabulary cards with the EL Support Lesson: Thinking Deeply About Word Problems.

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

Use these vocabulary cards with the EL Support Lesson Plan: Mental Math Bingo with Multiples of 10.

In this worksheet, children use number lines to practice adding and subtracting decimals to the tenths and hundredths place.

Jump forward and backward on a number line to solve addition problems in this engaging worksheet!

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!

Help your students apply strategies when solving addition problems. This worksheet provides practice for using number lines to solve addition problems with three-digit numbers.

Give your young mathematicians practice with number bonds and number sentences in this visually interesting worksheet that has students composing and decomposing numbers.

Can your second grader dig a little deeper into number comparisons? Have her find the missing number that makes each "greater than" equation true.

Go on a number adventure with this jungle-themed worksheet. Kids will use their number know-how to order numbers and clear a path through the jungle.

Work on addition while finding sums of 100 using a deck of playing cards and this first grade math worksheet.

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

Hop, skip, and jump using compensation in this second- and third-grade addition worksheet!

With this worksheet students will practice using the number line strategy to add three-digit numbers.

Once your child masters addition with carrying, there's practically no number too big for her to add!

Create models of addition problems with this compensation worksheet for second and third graders!

Test your skills with addition in this essential compensation worksheet!

Explore properties of operations while writing addition equations in this second-grade math worksheet!

Get more practice exploring properties of operations while writing addition equations in this second-grade math worksheet!

Continue exploring properties of operations while writing addition equations in this second-grade math worksheet!

Make the math concept "less than" more clear with a colorful worksheet that gets him practicing with number comparisons to make each equation true.

What does carrying have to do with math? Help your second grader find out with this worksheet full of big number addition and carrying hints.