Sums of Integers
-7 + 10
-7 + 10 = 3
-10 - (-10) =
-10 - (-10) = 0
5/8 + 3/4
11/8 or 1 3/8
-9 - (-13.5) =
-9 - (-13.5) = 4.5
A mile high is 5,280 ft. If you at at that elevation, descend 30 feet and then climb another 34 ft, what is your elevation?
5,280 - 30 + 34 = 5284 ft
-19 + (-8)
-19 + (-8) = -27
(-4) - 5 =
(-4) - 5 = -9
13 + 5.3 =
13 + 5.3 = 18.3
-9 - 3.5
-9 - 3.5 = 5.5
In a game of Jeopardy, Kris had -175 points at the end of her first five turns. On her next five turns, she lost 225 points. Write and evaluate an expression that shows how many points Kris had after ten turns?
-175 - (+225) = -400 points
(-21) + (-5)
(-21) + (-5) = -26
22 - 67 =
22 - 67 = -45
5/8 + 1/4 =
5/8 + 1/4 = 7/8
(+3) - (-4) - (+5) =
(+3) - (-4) - (+5) = 3 + 4 - 5 = 2
In Khushi's extensive gem collection she has 34 green gems, 63 yellow gems, and 21 blue gems. If Khushi gives away 15 of her gems to her friends, how many gems does Khushi now have? Write an addition expression and solve.
34 + 63 + 21 + (-15) = 103 gems
-4 + (-12) + (18) =
-4 + (-12) + (18) = 2
The temperature is -3 degrees. It dives -13 degrees over night. Determine the change in temperature.
-3 - 13 = -10 degrees
There is $40.75 in my bank account. I deposit $20.25. Then, I spend $4 on a candy bar. What is the new balance of my account?
There is $40.75 in my bank account. I deposit $20.25. Then, I spend $4 on a candy bar. What is the new balance of my account?
40.75 + 20.25 - 4 = $57
There are $14.50 in my bank account. I withdraw $10. What is the new balance of my bank account?
$4.50
If you owe me $5 and then borrow $2, and then you pay back $4, what is your debt to me now?
(-5) + (-2) + 4 = -3
3 + (-13) + (-8)
3 + (-13) + (-8) = -18
-12 - (-4) - 8 =
-12 - (-4) - 8 = -8
Write an addition expression is equivalent to 37 - (-14) - (-10).
37 + 14 + (-10)
Write a subtraction expression equivalent to 43 + (-23) + (-8)
43 + (-23) + (-8) =
43 -23 - 8 = 12
Rochelle dives into a lake from the water’s surface. Her change in elevation in the lake is described. She:
• descends 15.5 feet and takes some pictures of fish
• ascends 8.2 feet to explore another area
• descends 1.6 feet to capture video of a fish
• descends 20.4 feet to find some feeding bass
• ascends 15.5 feet to take more pictures
How many feet does Rochelle have left to ascend before reaching the surface?
13.8 ft below the water's surface