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: Fact Family Houses.

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

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.

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.”

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

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!

Get more practice balancing addition and subtraction equations with this lower grades math worksheet!

Get even more fun practice balancing addition and subtraction equations with this lower grades math worksheet!

Use problem solving and critical thinking skills to find different sums in these puzzles.

Your first grader will need to use her knowledge of addition and subtraction in order to solve these puzzles.

This addition puzzle is a great math challenge. Experiment with the number combinations to find the requested sums.

Your child will use his addition and subtraction skills in this Christmas word problems worksheet. Do some math at Christmas with this festive worksheet.

Make making ten a game with this extra-easy addition card game that comes with all the supplies you need.