Real Numbers
what is this -12/2?
it's a real number, integer, rational number
what does Commutative mean?
the order in which you multiple does not change the product Ex: 9x2=18 2x9=18
|-25|+|5|= ?
=30
2x3-8y4= if x=2 , y=1
=2(23)
Three times the difference of a number and 7 increased by 10.
3(7x+10)
is 10 a real number or a irrational number?
10 is a real number
what does Associative mean?
the way the gators are grouped does not change the product Ex: (5x4).2 5x(4x2)
20x2 = 40 5x8=40
|-12-5|=?
=17
|-a+b2x C| if a=-2 b=3 C=4
four more than the quotient of a number and 5 is 40
4+ x/5 =40
what are the whole numbers?
0 and up 1,2,3,4,5
any number multiplied by 1 keeps it's identity
Ex: 1x6=6 6x1=6
=22
w2+ 2xy= x=-3 w=-2 and y=1
= -18
Twice a number divided by 5
2 divide by n = 5
what are some real numbers?
there all numbers
what's does Inverse property mean?
the product of a number and it's reciprocal is always 1= 1/6 X -6/1= 1
|-10-5|=?
abc+5/ 5a a=2. b=-15 c=-1
=10
the sum of twice a number and 7
2n+7
2n+10 =36
what is a rational number?
1,3,5,1/4 , -2, 1/1-5
what does symmetric property mean?
x=y then y=x
Ex: 3+7=10 10=3+7
|-20|+|3|=?
a2+ 1xy= x=-2 w=-1 and y=-3
=30
the product of a number and 10 incased by 1
n+10 =1