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The Number System: Multiplying and Dividing Rational Numbers
Multiplying Rational Numbers
Description
Subject: Math
Chapter: Multiplying and Dividing Rational Numbers
CCSS Alignment: 7.NS.A.2
Lesson Title: Multiplying Rational Numbers
Introduction
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Transcript
Imagine that the temperature drops 2 degrees every hour for 3 hours. How much has the temperature changed?
A drop can be shown with a negative number, so dropping 2 degrees is written as −2.
Three hours of dropping 2 degrees means 3 × (−2). That means adding negative 2 three times, which gives −6, so the temperature changed by −6 deg...
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