Grade 7 · The Number System

CCSS.MATH.CONTENT.7.NS.A.2a

Understand that multiplication is extended from fractions to rational numbers by requiring that operations continue to satisfy the properties of operations, particularly the distributive property, leading to products such as (-1)(-1) = 1 and the rules for multiplying signed numbers. Interpret products of rational numbers by describing real-world contexts.

Read this standard on the official Common Core site

Lessons that teach this standard

• Multiplying and Dividing Integers: The Sign Rules

  The sign rules for multiplying and dividing negatives, why two negatives make a positive, and how to handle several negative factors at once.