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Represent ones and tens with crayons in this fun worksheet.

Counting on the 100s Chart (Part Two)

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

Adding Three-Digit Numbers on an Open Number Line #1

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

Adding Three-Digit Numbers on an Open Number Line #2

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

Adding Three-Digit Numbers on an Open Number Line #3

Give your kids extra addition practice with this worksheet, which teaches them that it's best to focus on the tens first.

Add the 10s First! (Part Two)

This worksheet isn't for beginners! Let your math savvy kid take on this carrying challenge. Can he add up these big numbers to find the correct sum?

Addition with Carrying #7

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.

Jungle Numbers #9

Children practice finding the sum of two three-digit whole numbers, with no regrouping, in this math worksheet.

Math Notes: Three-Digit Addition

Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.

Three-Digit Addition Strategies Review

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

Open Number Line Addition Within 1,000: Write the Equation #2

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

Open Number Line Addition Within 1,000: Write the Equation #3

Learn to perform addition with three-digit numbers in this essential worksheet!

Place Value Chart Addition Without Regrouping: Sums to 1,000 #2

Challenge yourself to solve three-digit addition problems in this colorful worksheet!

Place Value Chart Addition Without Regrouping: Sums to 1,000 #3

Carrying over takes a bit of practice. Give your second grade mathematician a boost with these practice problems.

Addition with Carrying #8

A board game perfect for sharpening your 1st-grader's addition skills.

Math-Go-Round: Addition (Expert)

Children will put their three-digit addition skills to the test as they solve 23 practice problems in this math worksheet.

Three-Digit Addition

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

Open Number Line Addition Within 1,000: Write the Equation #1

This lesson helps students develop an ability to compare and contrast as they explore two strategies to solve three-digit addition problems. This EL Math lesson can be used alone or alongside Three-Digit Addition Strategies Review.

Comparing Strategies for Three-Digit Addition

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