A dolphin swims 18 feet under the water. Then the dolphin swims 23 feet straight up and out of the water. How far out of the water did the dolphin jump?
-18 + 23 = 5 feet
200
-|57| =
-57
200
9 + (-8) =
1
200
-15 - (-2) =
-13
200
-56 / -7 =
DAILY DOUBLE!!
8
200
A piece of farmland in California has sunk 68 feet below sea level. After a year with little rain the ground sunk 2 more feet. At what level is the land at now?
-68 -2 = -70 feet
300
|-9| - |15| =
-6
300
-11 + 5 =
-6
300
7 - 12 =
DAILY DOUBLE!!
-5
300
-4 x -3 =
12
300
The outside temperature is -10 degrees and rising at a rate of 2 degrees per hour. How long will it be before the temperature reaches 0 degrees?
-10 + 10 = 0
So, 2 x ? = 10
= 5 hours
400
-|10| + |-3| =
-7
400
-12 + -9 =
-21
400
0 - (-13) =
13
400
63 / -9 =
-7
400
A fishing pole is cast into a pond and the hook sinks 9 feet. You get a bite on the line and tug the line up 3 feet. How deep is the hook in the water now?