LCM's and GCF's
LCM and GCF stand for...
What is Lowest Common Multiple and Greatest Common Factor?
Difference between a prime number and a composite number. Give an example
What is a prime number has exactly 2 distinct factors, one and itself while a composite number has more than two distinct factors; itself, at least one number other than itself, and 1.
Example: prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
composite numbers: 6, 9, 8, 12, 10, etc.
What BEDMAS stands for
What is brackets, exponents, division, multiplication, addition, and subtraction?
Definition of an improper fraction
What is when the numerator is larger than the denominator, the fraction represents more than a whole?
4/7 + 3/9
What is 57/63?
LCM(90,168)
What is 2 x 2 x 2 x 3 x 3 x 5 x 7 = 2520?
Prime factorization of 180. Explain your thinking.
What is 3 x 3 x 2 x 2 x 5?
15 + (7 - 3) - 1
What is 18?
Definition of a mixed fraction
What is a mixture of a whole number and an proper fraction?
5/4 - 7/8 =
What is 3/8?
LCM(100,126)
What is 2 x 2 x 3 x 3 x 5 x 5 x 7 = 6300?
Prime factorization of 320
What is 2 x 2 x 2 x 2 x 2 x 2 x 5?
4x3 / 6x7
What is 14?
Order from smallest to largest: 10/3, 9/4, 7/4, 9/3
What is 7/4, 9/4, 9/3, 10/3?
3/15 + 2/3 + 1/5 =
What is 1 1/15?
How is LCM useful in real life?
What is when you are given a certain amount for x and y and you need to know when to use them without wasting, for example, hot dogs and buns?
Prime factorization is
Give an example
What is the product of prime numbers?
Example: 30
2 x 5 x 3
Turn into a mathematical expression and solve
Divide 8 by 4 and then add 2. Add 5 and 3 together. Multiply the two results.
What is (8 / 4 + 2) x (5 + 3) = What is 32?
Number of quarter pieces in 3 1/4 pies.
What is 13 quarter pieces?
1/7 + 4/5 + 8/35 =
What is 5/7?
gcd(21,30). Explain your thinking
What is 3
28:1,3,7,21
30: 1,2,3,5,6,10,15,30
Mariana and Carlos are in two different math classes. Carlos's teacher always gives tests with 30 questions on them while Mariana's teacher gives more frequent exams with only 24 questions. Even though the two classes have to get a different number of exams, their teachers have told them that both classes will get the same number of exam questions each year. The minimum number of exam questions Mariana and Carlos can expect to get in a year is.
Explain your thinking...
What is 120?
lcm(30,24)= 2 x 2 x 2 x 3 x 5
6 + (6 x 2) - 9 / 3 + 22 x 5 - (5-2) =
What is 122?
5 equivalent fractions to 4/7
What is 8/14, 20/35, 12/21, 28/49, 36/63?
3 2/5 + 1 1/2 - 2 3/7 =
What is 2 33/70?