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Adding and Subtracting More Than Two Integers

For problems 1-4, I need you to make sure the answers are correct. If the problem is incorrect, please provide a step by step solution.

1. 27 -31 = -4

2. -22 + (-34) = -56

3. -35+ 67 = +22

4. -47 -33 +25 = -55

For problems 5 and six I am not sure if I have interpreted the answers correctly. Please with the interpretations.

5. A football team gained 4 yards on a play, lost 8 yards on the next play, then gained 2 yards on the third play. Write an addition expression to describe the total change of yardage. Then determine the sum and explain its meaning.
+4 -8 +2 = -2. The team lost 2 yards in the three plays.

6. A helicopter is flying at an altitude of 785 feet. It descends 570 feet, and then ascends 595 feet. Write an expression to represent this situation. Then determine and interpret the sum.

785 -570 +595 = 810. The helicopter is flying at an altitude of 810 feet.

Solution Preview

1. 27 -31 = -4
(THIS IS CORRECT)

2. -22 + (-34) = -56
(THIS IS CORRECT. THEY ARE BOTH NEGATIVE SO YOU ADD THE TWO NEGATIVE NUMBERS)

3. -35+ 67 = +32
(THIS IS INCORRECT SINCE THERE WAS A COMPUTATIONAL ERROR. ABOVE IS THE CORRECT ANSWER OF +32)

4. -47 -33 +25 = -55
(THIS IS CORRECT)

For problems 5 and ...

Solution Summary

This solution involves the adding and subtracting of integers.

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