Subtracting Integers made easy with this one quick trick... and knowing how to add integers. :)
This can also be used as a supplemental resource for Eureka Grade 7 Mathematics: Module 2: Topic A Lesson 5: Understanding Subtraction of Integers and Other Rational Numbers.
Calculator I recommend for Math 7 - Pre-Algebra. It can do almost anything inside of Algebra 1 as well and is fairly inexpensive.
https://amzn.to/2qRWmfE
For fun brainteasers and IQ puzzles to build up your math brain: https://www.PuzzleMaster.ca?a=810874
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