8th Grade Adding and Subtracting Negative Numbers Quizzes

Diagnose the source of the error first: meaning of the sign, subtraction notation, or calculation. Use a number line for a few targeted examples, restate subtraction as adding the opposite, and quickly return to the equations and expressions students meet in Grade 8.

Use multi-step expressions that alternate addition and subtraction, include integers of different sizes, and require students to show one transformation per line. A few problems embedded in equations or real-world changes make the practice more relevant than a page of isolated facts.

Watch for students who change two signs automatically, combine numbers before handling grouping symbols, or carry an incorrect sign from one step into the rest of an expression. Have them annotate subtraction as “add the opposite” and check each intermediate result against an estimated sign.

Host a quiz as a digital quiz on Wayground for quick review, or print the PDF for classwork, homework, or a short formative check. Every quiz includes a complete answer key, and paper responses can be captured for grading in the Wayground for Teachers app.

Common Core treats integer operations as prerequisite knowledge for Grade 8 work with equations, transformations, and scientific notation. Students need reliable control of signs when combining terms, evaluating expressions, and comparing coordinates across quadrants.

Create one version with foundational single-step problems and another with multi-step expressions, while preserving the same signed-number objective. Extended time can help students who need slower processing, and translated quizzes can make directions accessible without simplifying the mathematics.

Yes. The skill is usually developed in Grades 6 and 7, so Grade 8 instruction generally reinforces it and applies it inside algebra, geometry, and scientific notation. Targeted review is still appropriate when sign errors interfere with those newer topics.