Integers
The opposite of 5
-5
Compare -1 and -4.
-1 > -4
double
-3 + (-5)
-8
5 - 10
-5
Whole numbers
positive integers
An integer and the absolute value of that integer are always opposites.
False because...
6 and the absolute value of 6 are not opposites
Only sometimes true if negative signs are used in the problem
|-42|
42
l-6l and -l7l
l-6l > -l7l
1 + (-11)
-10
-9 - 0
-9
double
whole numbers, both positive and negative, and zero
integers
switcharoo
Same sign- ADD Different Sign- Subtract
is the rule for adding integers
The integers that come just before and just after -7.
-8 and -6
double
Order from least to greatest: 0, -2, 4
-2, 0, 4
switcharoo
13 + (-6)
7
-6 - (-8)
2
Define absolute value and give me an example of when two numbers can have the same absolute value.
Absolute value is the distance from 0 to that number.
The absolute value of -9 and the absolute value of 9 are both equal to 9.
Subtracting integers is like adding the opposite
True because...
The opposites of whole numbers
Negative integers
Order for from greatest to least: -7, 0, -3, 2
2, 0, -3, -7
The temperature is 13 degrees below freezing. The temperature then rises by 20 degrees. What is the new temperature?
7 degrees
You are 5 dollars in debt. You borrow 12 dollars more. What is the total amount of your debt?
-5 - 12 = -$17
Adding the opposite is a strategy of...?
A strategy to subtracting integers like 7 - 10 is like 7 + (10)
7 + -11 equals a negative number
True because...
-11 has a greater absolute value than 7 so the answer will be negative.
a number line shows a start of 7 and going back 11 spaces will result in -4.
This is neither positive nor negative.
zero
l-1l, 4, -l-2l, 0, 3, -5 from greatest to least
4, 3, 1, 0, -2, -5
double
The floor of the shallow end to swimming pool is 3 ft below the surface. The deep end's floor is 9 feet deeper. Depth of deep end is....
(-3) + (-9) = -12 feet
double
Sylvia checked the balance in her bank account early in the morning and saw that she had 98 dollars. In the afternoon, she noticed that there was an overdraft of 6 dollars in the account for unpaid bills. How much were the unpaid bills?
98 - (-6) = $104
switcharoo
Any number that can be written as a fraction is called a ______.
Rational number
The shortcut to (-6) - (-16) is keep, change, change
True because...