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MIDDLE SCHOOL

Mathematics (Grade 7)

The Number System

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The Number System: Adding and Subtracting Rational Numbers

Subtracting Decimals with Mixed Signs

Description

Subtracting Decimals with Mixed Signs

Introduction

Subtracting decimals with mixed signs involves working with both positive and negative decimal numbers. This skill is important for solving real-world problems wh...

Transcript

Amanda is doing her homework on subtracting decimals with mixed signs.

She learns the additive inverse rule: subtract by adding the opposite. A positive becomes negative, and a negative becomes positive. Using addition makes calculations easier.

Amanda tries her first question: three point five minus positive one point two.

The...

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