Connexus Units 5&6 Lessons Flashcards
What numbers are divisible by 2?
Even numbers
What numbers are divisible by 3?
Numbers where the sum of the digits is divisible by 3.
What numbers are divisible by 4?
Numbers where the last two digits are divisible by 4.
What numbers are divisible by 5?
Numbers that end in 0 or 5.
What numbers are divisible by 6?
Numbers that are divisible by 2 and 3.
Is 12,024 divisible by 2, 3, 4, 5, and/or 6?
Just not divisible by 5.
What does 4 to the 3rd power mean?
4 x 4 x 4
How do you write 3 x 3 x 3 x 3 in exponential form?
3^4
What are the first five prime numbers?
2, 3, 5, 7, 11
What is the prime factorization of 36?
2, 2, 3, 3 are the prime factors, so 2^2 times 3^2
How do you find the GCF of two numbers?
You list out the factors (divisibility) of the numbers and chose the largest one.
What is the GCF of 16 and 20?
16: 1, 2, 4, 8, 16
24: 1, 2, 3, 4, 6, 8, 12, 24
How do you find an equivalent fraction?
- You can multiple or divide the numerator or denominator by the same number.
- Use the multiplication table.
What is equivalent to 3/4?
6/8, 9/12, etc…
What is 3 1/2 converted to an improper fraction?
7/2
How to do you convert mixed numbers to improper fraction?
Circle Dircle
How to you convert improper fraction to mixed number?
Divide. The remainder/denominator is the fraction part.
What is the LCM of 8 and 6
List out all the multiple of both numbers until you find one in common.
8: 8, 16, 24
6: 6, 12, 18, 24
How do you compare fractions that have unlike denominators?
Find the LCD of both using equivalent fractions.
Which is greater? 2/3 or 4/5?
4/5, because 2/3 is the same as 10/15 and 4/5 is the same as 12/15.
How do you convert a fraction to decimal?
Use long division.
What is 2/5 as a decimal?
2 divided by 5 is .4
What is .15 as a fraction
Use place value, then reduce. .15 is 15/100 which reduces to 3/20.
