Understand subtraction of rational numbers as adding the additive inverse, 𝑝 – 𝑞 = 𝑝 + (–𝑞). Apply this principal in real-world contexts.
The Number System
Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.
Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers.