And inverse operations is when you take a set of two opposite operations, like addition and subtraction, and you show how they are related.

Similarly, the use of "indirect addition" to solve challenging subtraction problems relies on recognizing and utilizing the inverse relationship between addition and subtraction.

Teaching in Room 9 Relationship Between Addition & Subtraction 4 | 2nd Math Special | 28m 57s | CC In this lesson, Julia reviews the ways to make 10 and how we can use these ways to break apart ...