Equivalence of $8 - (-5) and $8 + 5 Using Counters
The counter model visually confirms that subtracting a negative integer is the same as adding its positive counterpart:
- **$8 - (-5){8}{5}{5}{5}{-5}{5}{8}{13} positives. So $8 - (-5) = 13.
- **$8 + 5{8}{5}{13} positives. So $8 + 5 = 13.
Both approaches produce , confirming that $8 - (-5) = 8 + 5$.
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