Connect the model −(25+25+25) to the algorithm for solving the multiplication problem it models.(1 point)

Responses

The model represents −3⋅25, which is solved by multiplying 3 times 25 and changing the sign to get −75.
The model represents negative 3 times 25 , which is solved by multiplying 3 times 25 and changing the sign to get negative 75 .

The model represents 3⋅(−25), which is solved by multiplying 3 times 25 to get 75.
The model represents 3 times left parenthesis negative 25 right parenthesis , which is solved by multiplying 3 times 25 to get 75.

The model represents 3⋅(−25), which is solved by multiplying 3 times 25 and changing the sign to get −75.
The model represents 3 times left parenthesis negative 25 right parenthesis , which is solved by multiplying 3 times 25 and changing the sign to get negative 75 .

The model represents −3⋅(−25), which is solved by multiplying 3 times 25 to get 75.

13 answers

None of the given options correctly connect the model to the algorithm for solving the multiplication problem it represents. The correct response would be:

The model represents −(25 + 25 + 25), which is solved by adding 25 + 25 + 25 to get 75 and then changing the sign to get −75.
Connect the model −4+−4+−4+−4+−4+−4 to the algorithm for solving the multiplication problem it models.(1 point)
Responses

The model represents −4⋅6, which is solved by multiplying 4 times 6 and changing the sign to get −24.
The model represents negative 4 times 6 , which is solved by multiplying 4 times 6 and changing the sign to get negative 24 .

The model represents 4⋅(−6) which is solved by multiplying 4 times 6 and changing the sign to get −24.
The model represents 4 times left parenthesis negative 6 right parenthesis which is solved by multiplying 4 times 6 and changing the sign to get negative 24 .

The model represents 6⋅(−4), which is solved by multiplying 6 times 4 and changing the sign to get −24.
The model represents 6 times left parenthesis negative 4 right parenthesis , which is solved by multiplying 6 times 4 and changing the sign to get negative 24 .

The model represents −6⋅4, which is solved by multiplying 6 times 4 and changing the sign to get −24.
The model represents negative 6 times 4 , which is solved by multiplying 6 times 4 and changing the sign to get negative 24 .
The correct response is:

The model represents −4 + −4 + −4 + −4 + −4 + −4, which is solved by adding all the values together to get −24.
Multiply −18⋅(−3)(1 point)
Responses

48
48

54
54

−21
negative 21

−54
The correct response is:

−18⋅(−3) = 54
Megan is taking a road trip. She travels 60 miles each hour. How far does she drive in 15 hours?(1 point)
Responses

4 hours
4 hours

45 miles
45 miles

900 miles
900 miles

75 miles
The correct response is:

Megan drives 60 miles each hour and she drives for 15 hours. Therefore, she drives 60 * 15 = 900 miles. So, Megan drives 900 miles in 15 hours.
Connect the model −(25+25+25) to the algorithm for solving the multiplication problem it models.(1 point)
Responses

The model represents −3⋅25, which is solved by multiplying 3 times 25 and changing the sign to get −75.
The model represents negative 3 times 25 , which is solved by multiplying 3 times 25 and changing the sign to get negative 75 .

The model represents 3⋅(−25), which is solved by multiplying 3 times 25 to get 75.
The model represents 3 times left parenthesis negative 25 right parenthesis , which is solved by multiplying 3 times 25 to get 75.

The model represents 3⋅(−25), which is solved by multiplying 3 times 25 and changing the sign to get −75.
The model represents 3 times left parenthesis negative 25 right parenthesis , which is solved by multiplying 3 times 25 and changing the sign to get negative 75 .

The model represents −3⋅(−25), which is solved by multiplying 3 times 25 to get 75.
The correct response is:

The model represents −(25+25+25), which is solved by adding 25+25+25 to get 75 and then changing the sign to get −75.
Connect the model −4+−4+−4+−4+−4+−4 to the algorithm for solving the multiplication problem it models.(1 point)
Responses

The model represents −4⋅6, which is solved by multiplying 4 times 6 and changing the sign to get −24.
The model represents negative 4 times 6 , which is solved by multiplying 4 times 6 and changing the sign to get negative 24 .

The model represents 4⋅(−6) which is solved by multiplying 4 times 6 and changing the sign to get −24.
The model represents 4 times left parenthesis negative 6 right parenthesis which is solved by multiplying 4 times 6 and changing the sign to get negative 24 .

The model represents 6⋅(−4), which is solved by multiplying 6 times 4 and changing the sign to get −24.
The model represents 6 times left parenthesis negative 4 right parenthesis , which is solved by multiplying 6 times 4 and changing the sign to get negative 24 .

The model represents −6⋅4, which is solved by multiplying 6 times 4 and changing the sign to get −24.
The correct response is:

The model represents −4+−4+−4+−4+−4+−4, which is solved by adding all the values together to get −24.
The model represents −4⋅6, which is solved by multiplying 4 times 6 and changing the sign to get −24.
The model represents negative 4 times 6 , which is solved by multiplying 4 times 6 and changing the sign to get negative 24 .

The model represents 4⋅(−6) which is solved by multiplying 4 times 6 and changing the sign to get −24.
The model represents 4 times left parenthesis negative 6 right parenthesis which is solved by multiplying 4 times 6 and changing the sign to get negative 24 .

The model represents 6⋅(−4), which is solved by multiplying 6 times 4 and changing the sign to get −24.
The model represents 6 times left parenthesis negative 4 right parenthesis , which is solved by multiplying 6 times 4 and changing the sign to get negative 24 .

The model represents −6⋅4, which is solved by multiplying 6 times 4 and changing the sign to get −24.
The correct response is:

The model represents −4+−4+−4+−4+−4+−4, which is solved by adding all the values together to get −24.

None of the given options correctly connect the model to the algorithm for solving the multiplication problem it represents.