Short Answer

Visualizing Inventory Adjustments with Counters

In a logistics training simulation, you use a counter model to explain the expression $8 - (-5), where 8 positive counters represent a surplus and -5 represents a deficit. To perform the subtraction, you first add 5 pairs consisting of one positive and one negative counter each to the original 8 positive counters. After you remove the 5 negative counters to represent the subtraction of the deficit, what remains in the model from those added pairs, and how does this result demonstrate that $8 - (-5) is equivalent to $8 + 5$?

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Updated 2026-04-18

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