Which number doesn't belong to the group?
Group Whole Numbers:
0, -8, 9, 17
-8
Negative numbers are not whole numbers
What is the absolute value of Zero?
Zero
When the signs are the same Ex: positive plus positive
or negative plus negative
Add
Add the absolute values and keep the sign they have in common
-15 + 5 =
Negative
There are more negatives than positives.
The negative number has a bigger absolute value.
1 + 7 = 8
True
Group Integers:
-3, -2.7, 0 , 8 , 12
-2.7
There is a negative sign, but decimals are introduced with rational numbers
What is true about absolute value? Define it.
(Just one is needed to get Credit)
Abs value is the distance between that number and 0
Abs v is always positive ( except 0, never negative works better)
When the signs are different Ex: Positive plus Negative
Subtract
Subtract absolute values and Keep the sign of the number with a bigger absolute value.
-13 + (- 2) =
Negative
Both numbers are negative, my answer will be negative when adding.
-5 + 20 = -15
False
-5 + 20 = 15
Group Terminating Decimals:
pi 7.87543, -9,
It never ends, it goes on forever, there are songs about it
pi
abs(8) and abs(8) are equal.
True or False
True
When the numbers are opposites of each other, or additive inverses
Subtract because the signs are different ( but the answer will be zero)
27 + (-27) =
Neutral
Zero is not positive or negative.
-7 + (-3) = -4
False
-7 + (-3) = -10
Group repeating decimals: (Turn the fractions into a decimal )
1/3 or 1/4
1/4
1/4 = 0.25
1/3 = 1.333333333333333333.....
What number has the same absolute value as -7
7 ( opposite numbers or additive inverses share the same absolute value )
abs(-5) + 5
Add
Both numbers are positive
abs(-5) = 5
-100 + 4 + 20 =
Negatives
There are more negatives than positives.
The negative number has a bigger absolute value than the other two numbers together.
-1 + (-2) + (-3) + 1 + 2 + 3 = 1
False
It is all zero
Group Multiples of 25:
25, 75, 155
155
155 can't be divided by 25
What is the only number that does not share an absolute value with its opposite?
Zero. There is no additive inverse of the number 0
-abs(5) + 5 =
Subtract: Different signs
-abs(5) = -5
the sum is 0
-1 + 2 + (-3) + 4 =
Positive
There are more positives than negatives.
The positive numbers have a bigger absolute value than all the negative numbers together.
Ms. Gonzalez is the best 7th-grade math teacher on the blue team.
False
She is the best math teacher on the orange team.