Subtracting Rational Numbers for Grade 7 Using The Number System

This video tutorial covers the subtraction of rational numbers, including fractions, mixed numbers, and decimals. It explains the concept of subtracting by adding the opposite and provides step-by-step examples for each type of number. The tutorial emphasizes finding common denominators for fractions and mixed numbers and highlights the importance of keeping track of signs when dealing with decimals. The video concludes with a recap of the key points and encourages viewers to practice the steps for mastering the subtraction of rational numbers.

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