Addition
3 + (-5) =
-2
6 - 14 =
-8
8 x 5 =
40
-8 / -4
2
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 lave reach before it starts to fall?
*Remember your units*
-220 + 930 = 710 feet
14 + (-5) =
9
12 - (-5) =
17
-3(12) =
-36
-72 / 8 =
-9
Allison is skiing with friends. She starts at an elevation of 420 feet. She descends 600 feet down the mountain into a valley. What is her elevation when she stops?
*Remember your units*
420 - 600 = -180ft
-13 + 4 =
- 9
-4 - (-18) =
14
-4(9) =
-36
-60 / 5 =
-12
The number of employees at a company decreased by 60 over 5 years. What is the average yearly change in employees?
*Remember you units*
-60 / 5 = -12 employees per year.
-11 - 15
- 26
-16 - (-1) =
-15
-5 x -15
75
-56 / 4 =
-14
You lose three points each time you answer a question incorrectly in a trivia game. If you answer eight questions in a row incorrectly, what is the change in your score?
*Remember your units*
-3 (8) = -24 points
12 + (-42) =
-30
-56
13 x 4 =
52
81 / 3 =
27
Bernard burns 9 calories per minute when he runs. How many calories does he burn if he runs for 45 minutes.
*Remember your units*
9 x 45 = 405 calories