Subtraction
0-9
-9
When two opposite integers add up to 0
Additive Inverse
l 8 - 9 l
1
A hiker starts hiking at the beginning of a trail at a point which is 200 feet below sea level. He hikes to a location on the trail that is 580 feet above sea level and stops for lunch.What is the vertical distance between them?
780
15-8
7
Subtraction can become addition by doing what?
Adding the opposite
l 15 - (-15) l
30
Steve's airplane takes off and then climbs 2500 feet. After 20 minutes, the airplane descends 150 feet. What is the airplane's current height? Write the equation and solve.
2350
-5 - (-6)
1
What are integers
All positive and negative whole numbers and zero
l -10 - 6 l
16
Tiffany received 200 dollars for her birthday from her parents. She went shopping and spent 137 dollars at her favorite store. How much money did she have left after her shopping trip?Write the equation for the word problem and solve.
63
7 - (-14)
21
What is the definition of absolute value
the distance an integer is from 0
l 26 - (-5) l
31
During a football game the offense started on the 50 yard line. After three plays they made it to the 2o yard line. What distance did the football team travel
30
7 - 5 - (-6)
8
What is the distance formula
Absolute value of the difference of two integers.
l 14 - 23 l
9
Dani and Ashley were digging in the sand at the beach. Dani dug a whole that was 20 inches below the surface and Ashley dug a hole 7 inches below the surface. Find the difference in depths of their holes. Write the equation and solve.
13