Real World
It is 5F. The temperature drops 12 degrees. What is the new temperature?
-7F
-7 + 12
5
2 - 3
-1
4 x (-2)
-8
6 / (-2)
-3
A diver is at -30 feet. He descends another 15 feet. What is his depth?
-45 feet
-12 + 4
-8
-10 - (-5)
-5
-1 x 4 x -8
32
-36 / (-6)
6
You have $50. You spend $12.75 on Tuesday. How much is left?
$37.25
-7 + (-7)
-14
3 - (-9)
12
5 x (-4) x (-2) x (-1)
-40
-81 / 3
-27
A submarine descends from the surface of the ocean at a rate of 20 feet per minute. What is the change in depth after 5 minutes?
-100 feet
10 + (-10) + (-10)
-10
-1 - (-12)
11
-12 x (-9) x 1 x (-1) x (-1)
108
144 / -12
-12
The temperature changed from -8F to 12F. What was the total change in degrees?
20 degrees.
-6 + 4 + (-3) + 9
4
10 - (-10) - 5
15
-12 x (-1) x (-2) x 6 x (-1) x (-1)
-144
-132 / -11
12