Turn this equation from subtraction to addition
-8 - 5
-8 + (-5)
When combining 2 integers with opposite signs, should you use addition or subtraction?
Subtraction
What is the formula for finding the change between 2 integers?
Final ____ - Intial ______ = Change
Name the property demonstrated here:
a + b = b + a
Communicative
What is the additive inverse of -12?
12
Turn this equation from subtraction to addition:
22 - (-8)
22 + 8
Change the following equation to addition:
5 -7 + 15
the average temperature in January was 15 degrees F. The average temperature in February was 22 degrees F. Which integer represents the final temperature?
22 degrees F is the final temperature
Name the property represented here:
(a + b) + c = a + (b + c)
associative
What is the absolute value of -100?
100
Change the equation to addition and solve:
- 20 - 7 - 10
-20 + (-9) + (-10) = -39
Change the following equation to addition and solve:
12 - 7 + 8 - 15
12 + (-7) + 8 + (-15) = -2
Bob had $70 in his bank account at the start of the week. Later in the week he went on shopping spree and had $15 left in his account. What is the change in Bob's bank account?
15 - 70 = 15 + (-70) = -55
8 + (-4) + 7 = 8 + 7 + (-4)
Communicative
What is the sum of all additive inverse pairs?
0
Change the equation to addition and solve:
30 + 15 + 16 - (-15) - (-10)
30 + 15 + 16 + 15 + 10 = 86
Change the following equation to addition and solve:
-12 - (-12) + 14 + 10 - 14
-35 - 20 = -35 + (-20) = -55
What property is represented here?"
-7 + (-6) + (-9) + 2 + 3
[-7 + (-6) + (-9)] + [2 + 3]
If the temperature changes from - 3 to - 15, is the change positive or negative?
negative
Change the equation to addition and solve:
- 15 - 6 - 20 - 15 - 30 - 15
-15 + (-6) + (-20) + (-15) + (-30) + (-15) = -101
1.Change the following equation to addition.
2. Use the communicative property to reorder integers so that like signs are together
3. Then, use the associative property to bracket equations with like signs.
-a + b - c + d - (-e) - f
-a + b + (-c) + d + e + (-f)
-a + (-c) + (-f) + b + d + e
[-a + (-c) + (-f)] + [b + d + e]
The Chicago Bears began the second half down 37 points. By the end of the game they were up by 21 points. What was the change in the Bear's points from the half to the end of the game?
21 - (-37) = 21 + 37 = 58
Rewrite this expression using both the communicative and associative properties to order and combine like signs
-2 + 3 + (-6) + 2 + (-8)
[-2 + (-6) + (-8)] + [3 + 2]
What is the name for the value of an integer relative to its distance from zero, regardless of the integer's sign?
Absolute value