Asked by zeo
Conrad subtracts −12−(−3) using the subtraction algorithm and finds that the answer is −9. He connects this expression and answer to a two-color counter model. Fill in the blanks to explain what is shown in the two-color counter model.
(2 points)
Conrad starts with 12 negative counters and then takes away
negative counters. He is left with
negative counters. Therefore, −12−(−3)=
.
(2 points)
Conrad starts with 12 negative counters and then takes away
negative counters. He is left with
negative counters. Therefore, −12−(−3)=
.
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