Vocabulary
What is an integer?
A positive or negative whole number including zero
-1+6
5
15(-2/3)
-10
Simplify 8(y+2)
8y+16
- square root 225
-15
What is a whole number?
Positive counting numbers including zero
-8.7+4.2
-4.5
y(-2)(-8)
16y
Simplify (m+5)5
5m+25
Round to the nearest integer
Square root of 66
about 8 or negative 8
What is a rational number?
Any positive or negative number that can be written as a fraction. If a decimal, it repeats or terminates.
-13+5+(-7)
-15
-1/3 divided by 5/3
What property is this? -8+0=-8
Property of zero
terms are 3, 4xy, -5xy, and 6
like terms 3,6 and 4xy,-5xy
coefficients 4 and -5
constants 3 and 6
What is an irrational number?
Can't be written as a fraction, it never ends and never repeats (or follows a pattern).
-11-(-3)
-8
Find the mean of -10, -8, 3
-5
What is this property? 2+3=3+2
Commutative Property of Addition
For a=-5, find -a and absolute value of a
5 and 5
What is a real number?
All rational and irrational numbers
1/2 - 5/6
-1/3
Simplify the expression (12y-8)/-4
-3y+2
What is this property? 9(-1)=-1
Property of -1
Find x^2-y^2 when x=-2 and y=-3
-5