Exponents
What is an exponent?
An exponent shows how many times a base (number) is multiplied by itself.
What is the acronym used to remember the order of operations?
PEMDAS
(Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction)
What is the difference between an expression and an equation?
An expression does not have an equals sign!
How do you multiply two fractions together?
You multiply the numerators together and the denominators together.
What is prime factorization?
The process of breaking down a number into its smallest prime numbers.
(5)(5)(5)
Evaluate 8 + 4 x 2.
16
In the expression 3x + 5, what is the coefficient?
3
How do you divide fractions?
You cross multiply or you multiply by the reciprocal of the second fraction.
(Keep, Change, Flip)
What is a prime number? Give one example.
A prime number is a number greater than 1 that can only be divided by 1 and itself. (or only has two factors, 1 and itself)
An example: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29...
What is the value of 43?
64
Evaluate 5 x (3+2) - 4.
21
In the expression 2y - 4, what is the constant?
-4
What is the product of 1/2 x 3/4?
3/8
If you don't know where to start when doing prime factorization, what number should you divide by first?
2 (the smallest prime number)
Simplify 32 (33).
35 or 243
Solve 62 + 8 / 4 x 2
40
When or why do you use a variable?
To represent an unknown number
What is 5/6 divided by 1/2?
10/6 or 5/3
What is the prime factorization of 12?
22 x 3
What is the value of (74)/(72)?
72 or 49
Solve 2 + 3 x (4+6) - 8 / 2
28
In the expression 12x-4x+7, what are the like terms?
12x and -4x
Simplify 2/3 x 3/5 divided by 1/2.
12/15 or 4/5
What is the prime factorization of 45?
32 x 5