These equations have lost their signs! Only one sign — plus or minus — can make each equation true.

Use these vocabulary cards with the EL Support Lesson Plan: What Are Arrays?

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

Use these vocabulary cards with the EL Support Lesson: Word Problem Comprehension.

Use these vocabulary cards with the EL Support Lesson: Fact Family Houses.

Use these vocabulary cards with the EL Support Lesson: Add Them Up!

Use these vocabulary cards with the EL Support Lesson: Decimal Word Problems.

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

Use these vocabulary cards with the EL Support Lesson Plan: Fact Family Triangles.

Kids complete each equation on this third grade math worksheet by determining whether an equation is addition or subtraction and writing in the correct sign.

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: Writing Decimal Subtraction Problems.

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.

It’s time to learn more about the equals sign! By filling in missing factors, students learn how the equals sign means “the same as.”

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.

These scales need balancing! By filling in missing addends, this worksheet helps students understand how an equals sign means “the same as.”

Challenge your third grader to figure out the addition and subtraction patterns on this worksheet.

This worksheet helps students understand how an equals sign means “the same as.” By filling in missing factors, students gain practice seeing how multiple number combinations can make the same number.

Kids love it when things are fair! Help students make equal groups of toys while exploring how the equals sign means “the same as.” Students will draw the missing objects and write the missing factors to balance the equations.

Practice addition with your second grader, a math worksheet, and a deck of playing cards.

Practice finding sums of ten with your first grader using a deck of playing cards and this math worksheet.

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

Here's one way to reinforce addition facts and basic math vocabulary. Your child can add up the numbers and fill in missing signs in these addition problems.

Your can experiment with addition facts here in the math lab. Can he write the missing addition symbols and complete the problems?

Not only can your child practice her math facts with numbers between 1 and 20, she'll also practice writing addition problems with the correct symbols.

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

Your young learner can have a blast experimenting with addition facts in the Math Lab!