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 Plan: Comparing Strategies for Three-Digit Addition.

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

Practice adding tens on an open number line with this first-grade math worksheet!

Get more practice adding tens on an open number line with this first-grade math worksheet!

Get even more practice adding tens on an open number line with this first-grade math worksheet!

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

Practice adding two-digit numbers on open number lines with this inviting addition worksheet!

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

Use open number lines to practice addition within 100 with this colorful math worksheet!

Practice addition within 100 using open number lines with this first-grade math worksheet!

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Get more practice adding multiples of 10 on an open number line with this vibrant worksheet!

Get more practice adding multiples of 10 on an open number line with this colorful worksheet!

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

Students use open number lines to help them write addition equations in this first-grade practice worksheet!

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

Get more practice performing addition within 100 using open number lines with this first-grade math worksheet!

Get more practice performing addition within 100 using open number lines with this first-grade math worksheet!

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!

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