A teacher asks four students to solve the expression (-6) – 9. The table shows each student's response
Student
Francesco
Gemma
Hugo
Ingrid
Response
-3
-15
3
15
Which student is correct?
Francesco
O Gemma
Hugo
Ingrid
(-6)-9 is the same as -6-9 since parenthesis aren’t really needed in thins case and if you use the order of operations you go left to right. So, -6-9=-15 because a negative- a negative= a negative.
