# Math Final

The flashcards below were created by user Jeffreeze on FreezingBlue Flashcards.

1. What does GCF stand for?
Greatest common factor.
2. What is the GCF of 144 and 24?
• 24
• (24-1, 2, 3, 4, 6, 8, 12, 24 and
• 144-1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48. 72, 144)
3. What is the GCF of 24 and 30?
6
4. What does LCM stand for?
Least common multiple.
5. What is the LCM of these two numbers?
14 44
308
6. What is the LCM of 7 and 14?
14
7. How many factors do a prime number have, and what are they?
• 2 factors
• One and itself.
8. 21- Composite or prime?
Prime.
9. 51-Composite or prime?
Prime
10. How many factors do a composite number have?
3 or more
11. 121- Composite or prime?
Composite
12. 123-Composite or prime?
Prime
13. What is the prime factorization of 49?
7 squared
14. What is the prime factorization of 144?
2 to the fourth power times 3 squared
15. What is 10 to the fifth power in standard form?
100,000
16. What is 5 to the fourth power in standard form?
625
17. If B+B=68, what is B?
B= 34
18. If C=5, what would C squared + 16 be?
41
19. Explain the P and E in PEMDAS.
• P= parenthesis- in order of operations, you do the problem inside the parenthesis first
• E=exponents- in order of operations, if you see an exponent (powers), do them first.
• Note: You do either one of these- whichever comes first in a left to right line.
20. Explain the M and D in PEMDAS
• M=multiplication- once all exponents and parenthesis are out, look for it as well as...
• D=division
• Note: You do either one of these- whichever comes first in a left to right line.
21. Explain the A and S in PEMDAS.
• A=addition- once everything else is done, do whatever comes first- addition or...
• S=subtraction
• Note: You do either one of these- whichever comes first in a left to right line.
22. Write the following decimals as a fraction or mixed number. (Simplest form please)
0.23, 5.95, 17.5, 89.34, 0.45
• 23/100
• 5 and 19/20
• 17 and 1/2
• 89 and 17/50
• 9/20
23. When dividing fraction, which number do you flip- the first or the second?
The second
24. Write this mixed number as a fraction-5/8.
0.625
 Author: Jeffreeze ID: 22606 Card Set: Math Final Updated: 2010-06-08 17:09:03 Tags: Math Luhi Finals Fractions Decimals Angles Folders: Description: Jeffreeze's math study cards for his final. Includes the addition/subtraction of fractions, the multiplication/division of fractions, fractions into decimals, angles and more. Show Answers: