Add / Subtract Integers 1
Add / Subtract Integers 2
Write Expressions
Mixed Review
100
75 - 175 =
-100
100
- 52 + 30 =
-22
100
Ben was playing a video game and ended the first level with 50 points. He gained 25 more points in round two and lost 10 points in round three. Write an expression to demonstrate the overall changes in his points.
50 + 25 - 10
or
50 + 25 + (-10)
100
The absolute value of 7 is...
7
(absolute value = distance from zero on a number line)
200
-85 + (-12) + 35
-62
200
- 15 - ( - 15) =
0
200
Sammy went to the National Bank of Vinci and deposited $450. The next day she wrote a check to the Galleria for $75 and another to Ms. V for $60. The following day she deposited another $150. Write an expression to demonstrate the changes to her bank register.
450 - 75 - 60 + 150
or
450 + (-75) + (-60) + 150
200
The additive inverse, or opposite, of 7 is...
-7
300
What is the value of ( - 4 ) + 15 - ( - 21)?
32
-4 + 15 = 11
11 - ( -21) = 11 + 21 = 32
300
What is the value of ( - 17 ) - ( - 32 ) - 22?
-7
-17 - (-32) = -17 + 32 = 15
15 - 22 = -7
300
Ms. V was scuba diving. She swam down 35 feet to look at the brain coral. She ascended 15 feet to get away from the barracuda hiding in the coral. Finally, she descended another 40 feet to check out the octopus hiding in the sand. Write AND evaluate an expression to represent these changes in elevation.
-35 + 15 - 40
or
-35 + 15 + (-40)
-60 feet
300
Which expression is modeled on this number line?
a) -2 + 1
b) -2 - (-1)
c) -2 + 3
d) - 2 - 3
c) -2 + 3
400
-60 + 75 - ( - 12)
27
400
-45 + (-20) - 17 + 3
-79
400
Reese purchased $65 worth of art supplies over the weekend. That week he sold two drawings, one for $35 and the other for $50. Write AND evaluate an expression to demonstrate this situation. Then EXPLAIN what that value means.
-65 + 35 + 50
20
Reese made $20 profit. Reese earned $20 more than he spent.
400
The temperature at 5:00am was -16 degrees. By noon it had risen to 13 degrees. What was the overall change in temperature?
29 degrees