contestada

A school has 97 students. Twelve of those students moved away. Karen simplified the expression 97 − 12 to find the number of students left at the school. Caleb solved it in a different way, but found the correct answer. What expression did he use? 97 + 12 97 + (−12) −97 + 12 −97 + (−12)

Respuesta :

He would have had to use the expression,
97 + (-12)
This is because positive and a negative equal a negative.