Integer Operations
Solve
4 + (-20)
-20 + 4
-20 - 4
4 - (-20)
-16, -16, -24, 24
A football team loses 5 yards on the first play and then loses another 8 yards on the second play.
What value could be used to represent their total change in position?
-13 (loss of 13 yards)
Give 2 examples of mathematical opposites.
+5 and -5
When adding zero, + 0, you move in which direction on the number line?
a) towards the positive
b) towards the negative
c) you do not move at all
c
What is the absolute value of |-48|?
48
-12 + 5 =
-12 - 5 =
-7 and -17
You park in a garage 3 floors below ground level. Then you get in the elevator and go up 12 floors.
1. What values could be used to show your change in floors?
When you finally get off the elevator, what floor are you on?
-3 and +12
The 9th floor
What is absolute value?
The number away from zero
When adding a positive number, for example, + 1, you move in which direction on the number line?
a) towards the negative
b) towards the positive
c) you do not move at all
b
What is the absolute value of |92|?
92
-16 - (-17) =
-16 - 17 =
Stephanie has $152 in the bank. She withdraws $20 then deposits $84.
What values can be used to represent her withdrawal and deposit?
Write 2 addition equations to represent the changes to her bank account.
-20 and 84
216 + (-20) = $196
196 + 84 = $280
When you find a sum you are ________.
When you find the difference you are _____________.
Adding
Subtracting
When adding a negative number, for example, +(-1), you move in which direction on the number line?
a) towards the negative
b) towards the positive
c) you do not move at all
a
What is the absolute value of -|12|
-12
-5 + (5) - (-19) =
-19
You are $5.86 in debt. You borrowed 12.94 dollars more.
What is the total amount of your debt?
Write an addition equation and a subtraction express to represent this situation
$18.80
-5.86 + (-12.94)
-5.86 - 12.94
What is an integer?
A whole number that can be negative or positive
When subtracting a positive number, for example,
- 1, you move in which direction on the number line?
a) towards the negative
b) towards the positive
c) you do not move at all
a
Greater than, Less than or =
-5 ____ l-10l _____10
< and =
-8 + (-4) + (-3) + 12 - (-3)
0
Ojos del Salado is the highest mountain in Chile, with a peak at about 6800 meters above sea level. The Atacama Trench, just off the coast of Peru and Chile, is about 8100 meters below sea level (at its lowest point).
1. 14,900 meters
2. -650 meters
What is an additive inverse (zero pair)?
The same numbers that, when added together, equal 0 because they are opposites.
When subtracting a negative number, for example,
- (-1), you move in which direction on the number line?
a) towards the negative
b) towards the positive
c) you do not move at all
b
Put in order from least to greatest
|-2|, 10, -4, 3, 0, -18, l-29l
-18, -4, 0, |-2|, 3, 10, l-29l