An elevator is on the 20th floor, it goes down 11 floors and then up 5 floors. what floor is the elevator on now?
The 14th floor
100
a pair of numbers whose sum is zero, e.g. +1, -1. • used to illustrate addition and subtraction problems. with positive and negative integers.
A zero pair
100
(+16) ⬜️ (-9)= +7
(+)
200
(+9)+(+4)=
+13
200
(18)-(-13)=
+31
200
Josie has $47 left on her checking account. If she writes a check for $55, what would Josie’s balance be?
-8 dollars
200
A whole number, a number that is not a fraction
A integer
200
(-28)+(+31)=
+3
300
(-20)+(+28)=
+8
300
(+27)-(-36)=
+73
300
A scuba diver swam 96 feet beneath the surface of the lake, he then climbs up 49 feet, what is his depth now?
-47
300
Opposite integer
Two integers with the same numeral, but different signs
300
(-27)-(38)=
-65
400
(14)+(-7)-(8)=
-1
400
(-12)+(+21)-(-8)=
+1
400
I hike starts at an elevation of 30 m below sea level and ends at a point 9500 m higher then the starting point.
What was the elevation be at the end of the hike?
9530 m
400
The sum of a set of values divided by the number of values in the set
Mean
400
(27)⬜️(-16)⬜️(-9)=+20
(+),(-)
500
(-29)-(31)+(16)=
-44
500
(-32)-(+29)-(41)=
-102
500
The elevation of Mount Everest is 29,028 feet, the elevation of the dead sea is -485 feet what is the difference in elevation between Mount Everest and the Dead Sea?
29,513 feet
500
A visual way to show the relationship between two sets of numbers
Graph
500
Jim decided to go for a drive in his car he started out at 20 mph down the street and then to get on the highway he accelerated 35 mph, the car was going slow in front of them so he slowed down 11 miles per hour then go off. At what speed is he driving?