This seventh-grade math worksheet is designed to help students practice adding and subtracting rational numbers, which include positive and negative fractions, decimals, and mixed numbers. The worksheet includes problems that require students to add or subtract rational numbers with the same form, as well as those with different forms, providing a wide range of practice and challenge. To successfully complete this worksheet, students should already be able to add and subtract positive and negative integers, and should also be comfortable converting between decimals, fractions, and mixed numbers. For further practice on operations with rational numbers, students can proceed to the Multiplying and Dividing Rational Numbers worksheet.