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What does GCF stand for?
Greatest common factor.
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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)
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What is the GCF of 24 and 30?
6
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What does LCM stand for?
Least common multiple.
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What is the LCM of these two numbers?
14 44
308
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What is the LCM of 7 and 14?
14
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How many factors do a prime number have, and what are they?
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21- Composite or prime?
Prime.
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51-Composite or prime?
Prime
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How many factors do a composite number have?
3 or more
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121- Composite or prime?
Composite
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123-Composite or prime?
Prime
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What is the prime factorization of 49?
(Exponents please)
7 squared
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What is the prime factorization of 144?
(Exponents please)
2 to the fourth power times 3 squared
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What is 10 to the fifth power in standard form?
100,000
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What is 5 to the fourth power in standard form?
625
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If B+B=68, what is B?
B= 34
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If C=5, what would C squared + 16 be?
41
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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.
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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.
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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.
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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
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When dividing fraction, which number do you flip- the first or the second?
The second
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Write this mixed number as a fraction-5/8.
0.625
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