Use counters to add –6 + –5.
Solution
To add -6 and -5 using counters, follow these steps:
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Represent -6 on the number line or with counters. You can do this by starting at zero and moving six places to the left.
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Next, represent -5. Again, start at zero and move five places to the left.
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Now, combine the two sets of counters. Since both numbers are negative, you're essentially combining two sets of "debt" or "losses".
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Count the total number of counters. Since each counter represents a loss of one, the total will be negative.
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The total is -11. So, -6 + -5 = -11.
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