Multiples & LCM
List the first 4 multiples of 2 starting at 212.
What is 212, 214, 216, 218?
All factors for the number 20
What is 1, 2, 4, 5, 10, 20?
The prime factorization of 42
What is (3 x 2 x 7)?
Composite numbers are...
What are numbers that have more than 2 factors?
(3 + 10) x 3 + 1
What is 40?
List the first 5 multiples of 3 starting at 15.
What is 15, 18, 21, 24, 27?
The Greatest Common Factor of 60 and 90
What is 30?
True or False: 23 is NOT a prime number.
What is false? The number 23 is prime because it has only two factors 1 and 23.
True or False: An exponent shows repeated addition.
What is false? An exponent shows repeated multiplication.
34 =
What is 81?
Teacher Anna can set up chairs at a table with 8 or 10 per table with no chairs left over. Name the fewest number of chairs she could be setting up.
What is 40?
40 is the LCM of 8 and 10.
The factors of 19 in order from least to greatest
What is 1, 19?
The prime factorization of 50
What is (2 x 5 x 5) or (2 x 5^2)?
2 ways that you can show a multiplication symbol. Earn an additional $100 if you can name all 3!
What are using "the dot", the "x" or "parentheses"?
These are the numbers you multiply together to get a product.
What are factors?
The LCM of 30 and 40
What is 120?
30: 30, 60, 90, 120
40: 40, 80, 120
Five factors of 36
What is 1, 2, 3, 4, 6, 9, 12, 13, 36?
(Your partner only had to name 5 of the factors on this list)
True or False: These are equivalent expressions.
3(40 + 5) = (3 x 40) + (3 x 5)
What is true?
They show the Distributive Property. Both sides total 135.
You use this tool to find the prime factorization of a number
What are factor trees?
23 + 42 + 31 =
What is 27?
23 = 2 x 2 x 2 (8)
42 = 4 x 4 (16)
31 = (3)
8 + 16 + 3 = 27
List the first 3 multiples of 12 starting at 36.
What is 36, 48, 60?
Greatest common factor of 120 and 24
What is 24?
An equivalent expression for:
(3 x 4) + (3 x 5)
that models the Distributive Property.
What is 3 x (4 +5)?
This is the symbol you use in computing (on your keyboard or calculator) to represent an exponent
What is the caret symbol?
Teacher Anna wants to divide her class of 30 students into equal sized groups. Name 4 different ways she could divide the class up.
What is: 30 groups of 1, 1 group of 30, 2 groups of 15, 15 groups 2, 3 groups of 10, 10 groups of 3, 5 groups of 6, and 6 groups of 5?
If your partner named at least 4 -- they are correct!