Related to Prime Numbers
Is 19 a prime number?
Yes
When we find factors, are we breaking down the original number or are we multiplying the original number?
Breaking it down
When we find multiples, are we breaking down the original number or are we multiplying the original number?
Multiples = multiply
Find x. (Hint: there's an easy way and a hard way)
7/9 = x/45
35
Write 0.3 as a fraction in simplest form.
3/10
What is the next prime number after 7?
11
Break down the definition of the term "Greatest Common Factor."
GCF is the biggest factor that 2 or more numbers have in common.
Break down the definition of the term "Least Common Multiple."
The smallest multiple that 2 or more numbers have in common.
Find x. (Hint: there's an easy way and a hard way)
4/5 = x/30
24
Write 0.75 as a fraction in simplest form.
3/4
Factor tree
Find the GCF of 21 and 48.
3
Find the LCM of 7 and 21.
21
Reduce 42/35 to simplest form.
6/5
Write 1/5 as a decimal. (answer could be repeating)
0.2
Write 12 as a product of prime numbers.
3 x 2 x 2 or 3 x 22
Find the GCF of 9 and 27.
9
Find the LCM of 4 and 3.
12
Write the fraction 7/4 as a mixed number.
1 3/4
Write 2/3 as a decimal. (answer could be repeating)
0.66666...
Write 100 as a product of prime factors.
2 x 2 x 5 x 5 or 22 x 52
Find the GCF of 5, 21, and 35.
1 - relatively prime
Find the LCM of 4, 8, and 12.
24
Write 4 3/5 as an improper fraction.
23/5
Write 27/20 as a decimal. (answer could be repeating)
1.35