What model can you use to represent −30÷−6?(1 point)
Responses
(−5)+(−5)+(−5)+(−5)+(−5)+(−5)=6(−5)=−30
negative 5 plus negative 5 plus negative 5 plus negative 5 plus negative 5 plus negative 5 equals 6 left parenthesis negative 5 right parenthesis equals negative 30
−30−(−6)−(−6)−(−6)−(−6)−(−6)=−30−5(−6)=0
negative 30 minus left parenthesis negative 6 right parenthesis minus left parenthesis negative 6 right parenthesis minus left parenthesis negative 6 right parenthesis minus left parenthesis negative 6 right parenthesis minus left parenthesis negative 6 right parenthesis equals negative 30 minus 5 left parenthesis negative 6 right parenthesis equals 0
30−6−6−6−6−6=30−5(6)
30 minus 6 minus 6 minus 6 minus 6 minus 6 equals 30 minus 5 left parenthesis 6 right parenthesis
(−6)+(−6)+(−6)+(−6)+(−6)=5(−6)=−30
7 answers
First, we start with 17 white counters to represent −17. Then, we subtract 3 black counters to represent (−3).
At this point, we can count the total number of counters we have left. If the total number of counters is indeed −14, then Elaine's answer is correct. If the total number of counters is different, then Elaine's answer is incorrect.
Therefore, by using the two-color counter model and confirming the total number of counters, we can determine whether Elaine's answer of −14 is correct or not.