Example 3.29 from Prealgebra, 3.2 Add Integers

Add Integers: example 3.29

A football team took possession of the football on their $42-yard line.$ In the next three plays, they lost $6 yards,$ gained $4 yards,$ and then lost $8 yards.$ On what yard line was the ball at the end of those three plays?

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

The Bears took possession of the football on their $20-yard line.$ In the next three plays, they lost $9 yards,$ gained $7 yards,$ then lost $4 yards.$ On what yard line was the ball at the end of those three plays?

How did it go?

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Write a word phrase for the position of the ball.	Start at 42, then lose 6, gain 4, lose 8.
Translate to math notation.	42 − 6 + 4 − 8
Simplify.	32
Write a sentence to answer the question.	At the end of the three plays, the ball is on the 32-yard line.

Write a word phrase for the position of the ball.	Start at 42, then lose 6, gain 4, lose 8.
Translate to math notation.	42 − 6 + 4 − 8
Simplify.	32
Write a sentence to answer the question.	At the end of the three plays, the ball is on the 32-yard line.

Add Integers: example 3.29

Solution

Your turn

Add Integers: example 3.29

Solution

Your turn