Adding , , and with Counters
Using the visual counter approach provides extra practice for evaluating integer sums. When calculating , you combine 2 negative counters with 4 negative counters to collect a total of 6 negative counters, which equals . When evaluating , the 2 negative counters pair up with 2 of the positive counters to cancel out, leaving just 2 positive counters (). Finally, when adding , the 2 positive counters form neutral pairs with 2 of the negative counters, leaving exactly 2 negative counters remaining ().
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Intermediate Algebra @ OpenStax
Ch.1 Foundations - Intermediate Algebra @ OpenStax
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Adding , , and with Counters
Adding , , and with Counters
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Adding and with Counters
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Adding , , and with Counters