Real Numbers and Their Graph
What is a whole number?
{0, 1, 2, 3, ...}
2 * 5 - 6 / 2
7
Which property is a(b+c)=ab+ac ?
Distributive Property
46 - (-23)
69
5(-2)(3)(-4)
120
Name 2 irrational numbers
Multiple Answers (pi, square root of non-perfect square)
12 - 6[9 - 2(5-3)]
-18
Which property is (a+b)+c=a+(b+c)?
Associative Property
57 - 13 - 46
-2
If x = 2, find
x(x-2)(3x[4(3-23x)])
0
What is the opposite reciprocal of 300?
-1/300
1/10[2(3+4) - 3^2]
1/2
What two real unique numbers are used the identity properties?
0 and 1
Simplify 5x + 4(x-2)
9x - 8
Is the answer positive or negative? (don't solve)
(-23)(2)(-4)/(-3)(-7)(-6)
Negative
Write in symbols:
Negative three is less than one.
-3 < 1
If x=4 and y=5, what is 3x2 +xy - y2
43
What is the Commutative Property?
a + b = b + a
or
ab = ba
Find the number makes the equation true.
-4.2 + __?__ = 1.7
5.9
Give a numerical example to show that division is not commutative.
Many Answers.
Ex: 2/3 is not 3/2
True or False.
5[4+2(1-3)] = 6 + 22
False
Use five 5's to write an equation equal to 500.
5(5[(5*5)-5])
What is the multiplicative inverse of a?
1/a
What is the distance between the highest and the lowest points on Earth? The highest point on Earth, Mount Everest, is 29,029 feet above sea level. The Challenger Deep is the deepest known point in the Earth's seabed at a depth of 35,856 feet.
64,885 feet
Find a Value of y for which the expression (1-y)(3-y)(6-y)=0
1, 3, or 6