Find the sum
7 + (-8)
|3|
3
Maria saved 200 dollars and then she spent 150 dollars. How much money does Maria have now?
200 + (-150) = 50
$50
Absolute value means (distance from 0/opposite number).
Distance from 0
-23 + 31
8
|-9|
9
A submarine at 21 feet below sea level suddenly moves up about 6 feet. At what depth is the submarine located now?
-21 + +6 = -15
15 below see level
The sum of two positive integer is (always/sometimes/never) 0.
Never
29 + (-46)
-17
- (-4)
4
A fisherman has a baited hook 5 feet above the surface of the water. He lower the hook 18 feet. Then he raises the level of the hook 4 feet. What is the elevation of the hook?
5 + (-18) + 4 = -9
9 ft. below surface
The sum of 0 and a positive integer is (always/sometimes/never) 0.
Never
-49 + (-121)
-170
- |-9|
-9
Sara owes $320 for the rent. She also owes $45 for her electric bill and $57 for her phone. Her paycheck is $415. Will her paycheck enough?
No, she need $7 more.
415 - 320 - 45 - 57 = -7
The sum of 0 and a negative integer is (always/sometimes/never) 0.
Never
-12 + 37 + (-54)
-29
-[ - (-3) ]
-3
The sum of a positive integer and a negative integer is (always/sometimes/never) 0.
Sometimes