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

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

Use these vocabulary cards with the EL Support Lesson Plan: Think About What Went Wrong

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

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

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

Speed through subtraction problems in this second-grade worksheet!

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!

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

Children practice conceptualizing multiples of 100 using a visual reference with this two-part worksheet.