which situations can be modeled by the eexpression -4+(-7)

Question

Elsa lost four points on the last math quiz, and Marc lost seven points. How many more points did Marc lose than Elsa? Elsa lost seven points on the last math quiz, and Marc lost four points. How many total points did they lose?
Elsa lost four points on the last math quiz, and Marc lost seven points. How many total points did they lose?
 

Answer 1

Shayla,

 

The expression -4 + (-7) = -11 which would be the total number of points lost.

 

So, the third statement is represented by the expression.

 

The first statement (how many more points did Marc lose) would look like this:

 

-4 - (-7) = 3 (3 more points)

 

Hope this helps!