Properties
Number Sense
Solving Equations
Exponents
Scientific Notation
100
Identify the property: 3+(4+x) = (3+4)+x
Associative
100
The sum of two negative numbers is always (choose one)
positive, negative, zero, an integer
negative
100
Solve for x: 3x - 5 = 16
x = 7
100
Simplify: 85 x 8-3
82
100
Write in scientific notation: 35,020,000
3.502 x 107
200
Identify the property: x+y = y+x
Commutative
200
Identify the prime numbers in the list below:
5, 8, 12, 23, 33, 51, 120
5, 23
200
What is the solution to the equation
2(3p - 4) = 10
p = 3
200
Simplify and write your answer using positive exponents: y3/y9
1/y6
200
Write in standard form:
4.5 x 10-5
0.000045
300
Complete the Distributive Property:
-3(2x - 7) = _____________
-6x + 21
300
Write an irrational number and explain why it is irrational.
answers will vary
300
Solve for x: 3x - 7 = 3x + 5
No solution
300
Simplify: (5x3y)4
625x12y4
300
9.556 hours
400
To illustrate the inverse property of multiplication, a number is multiplied by its _______________ (must use the correct mathematical term)
ex. 5 (1/5) = 1
reciprocal
400
Will the sum of 3 and square root (7) be rational or irrational? Why?
Irrational -- It is a non-terminating and non-repeating decimal (cannot be written as a fraction)
400
Solve: 4(x - 7) = 0.3(x + 2) + 2.11
x = 8.3
400
(2n)5 * (2n)3 / (2n)8
1
400
Find out the weight of 6 billion dust particles, if a dust particle has a mass of 7.53 x 10-10 g.
4.518 grams
500
What must be added to a - b to get 0?
1) a + b
2) a - b
3) -a + b
4) -a - b
(3) -a+b
500
If a is an odd number, b an even number, and c an odd number, which expression will always be equivalent to an odd number?
1) a(bc)
2) ac(b)0
3) ac(b)2
4) ac(b)3
(2) ac(b)0
500
Jackson is starting an exercise program. The first day he will spend 30 minutes on a treadmill. He will increase his time on the treadmill by 2 minutes each day.
a) Write an equation for T, the time in minutes, he spends on the treadmill on day d.
b) Using your equation, determine how many minutes he will spend on the treadmill on day 6.
a) T = 30 + 2d
b) T = 30 + 2(6)
T = 42 minutes
500
Determine the value of n:
(-4x3y7z-4)(2xny-6z) = -8y/(x2z3)
n = -5
500
The half life of Uranium-238 is 4.5 x 109 years, and the half-life of Uranium-234 is 2.5 x 105 years. How many times greater is the half-life of Uranium-238 than that of Uranium-234? Write your answer in standard form.
1.8 x 104 = 18,000 years