Addition and Subtraction - Inverse Operations . Addition and Subtraction are inverse operations. This means that the action of one will undo the action of the other. The action of addition is joining and the opposite action of subtraction can be taking away (it can also be difference and comparison but these roles of subtraction will be investigated in other lessons). . The inverse relationship between addition and subtraction can be demonstrated clearly on a number track where students can phys

Addition and Subtraction – Inverse Operations (Equations) . Concept/s...