Teas V Math

  1. This termis the set of whole positive and negative numbers, including zero. (not including decimals or fractions
    Integers
  2. What is a Prime number?
    A whole number greater than 1 that can only be divided by 1 and itself.
  3. What is a composite number?
    A whole number greater than 1 that is not a prime number and can be divided by numbers other than 1 and itself.
  4. What is a rational number?
    What is an irrational number?
    • Rational Number: Numbers that include all integers, decimals, and fractions: anny terminating or repeating decimal number is a national number.
    • Irrational Number: numbers that cannot be written as fravtions or decimals. Examle, pi is an irrational number because it doesnt end (3.1415.....)
  5. Define these terms of operation:
    1. Sum
    2. Difference
    3. Product
    • Sum: results from addition
    • Difference: results from subtraction
    • Product: results from multiplication
  6. This term is a superscript that indicates how many times the base number is to be multiplied by itself.
    Exponent
  7. How is 2 raised to the power of -2 solved?
    Image Upload 1
  8. List the order of operations? (PEMDAS)
    • Paranthesis
    • Exponents
    • Multiplication
    • Division
    • Addition
    • Subtraction
    • **Multiplication and division have equal presidence, as do addition and subtraction, so those pairs are simply worked from left to right in order**
  9. What is:
    5 + 20 ÷ 4 x (2+3)^2
    Image Upload 2
  10. What is:
    2^3  +  2^4
    • = 2^7  =  128
    • Add exponents to together when the base number is the same
  11. What are the 10 perfect square roots from 1-100?
    1, 4, 9, 16, 25, 36, 49, 64, 81, 100
  12. Write 0.0002304 in scientific notation
    2.304 x 10^-4
  13. What is a common factor?
    • A number that divides exactly into two or more other numbers.
    • Examples: Factors of 12 are 1,2,3,4, and 12
    • 1 x 12
    • 2 x 6
    • 3 x 4
    • etc.
  14. What is prime factor?
    • A prime factor is also a prime number.
    • Prime factor of 12 are 2 and 3 (2 and 3 are prime numbers)
  15. What is GCF? What is the GCF of 15 and 35?
    • GCF (greatest common factor) is the largest number that is a factor of two or more numbers. 
    •  - The greatest number that goes into both 15 and 35 is 5.
    • * 15 (1,3,5,15)
    • * 35 (1,5,7,15)
  16. Define proper and improper fraction.
    • Proper Fraction: a fraction whose denominator is greater than its numerator
    • Improper Fraction: a fraction whose numerator is greater than its denominator
  17. Write 15% as a fraction and simplify
    15% = 15/100 = 3/20
  18. Write .8 as a fraction and percent
    .8 = 4/5 = 80%
  19. what is 2.5 x 4?
    • Easiest way is to multiply 25 x 4 = 100
    • Then add a decimal point based on the number of decimal places in the equation.
    • 2.5 x 4 = 100 / 10 = 10.0
  20. What is 30% of 120? What is the word "of" referring to?
    • The word "of" indicates multiplication 
    • First convert 30% to a decimal, then multiply.
    • 30% -> 0.30 x 120 = 36
Author
edeleon
ID
320777
Card Set
Teas V Math
Description
Study guide: secrets of TEAS V Exam
Updated