Add & Subtract Integers
The water level at Lake Willow was -14 feet. After 3 days of rain, the water level rose by 23 feet. What is the water level after the rain?
-14+23=9 ft.
Nina made 8 withdraws from her bank account. Each withdraw was for $20. What was the total change in her bank account?
-20*8=-160
Mason is skiing with friends. He starts at an elevation of 420 feet. He descends 600 feet down the mountain into a valley. What is his elevation when he stops?
420-(-600)=-180
A dinner bill total came to $64. Eight friends each use a debit card to split the bill. What will be the change in the bank of each friend who helped pay for dinner?
64/8=$8
The lava in a volcano rests 220 feet below sea level. When the volcano erupts, the lava shoots 930 feet upward. How high does the lava reach before it starts to fall?
-220+930=710 ft.
Due to erosion, a beach is disappearing at a rate of -5 feet per year. How long will it take for the beach to lose 85 feet
Blair's bank account was overdrawn by $40. She spent $30 at the grocery store. What is the balance in her account now?
-40+(-30)=-70
Peter sets out on a run 4 miles west of his school. He ran 14 miles east. How far past is his school after his run?
4-14=10