A quarter back is sacked for a loss of 4 yards. On the next play his team loses 10 yards. Then the team gains 12 yards on the third play. Write an addition expression to represent this situation. Then find the sum and explain its meaning.

see below

Step-by-step explanation:

loss of 4 yards  

-4

loses 10 yards.

-10

gains 12 yards

+12

The expression for the three plays

-4 +(-10) + 12

The sum is

-2

The team needs to gain 10 yards to make a first down and instead they lost 2 yds

The answer is 6

Step-by-step explanation:

4 - 10 = -6  then

the team gains 12 more yards which is

-6 + 12 = 6