Download 3 - HPena

5.1 Model Factors
11/9/15
A factor is a number multiplied by another number to find a product. Every
whole number greater than 1 has at least 2 factors.
5.3 Problem Solving- Common Factors
Chuck has a coin collection with 30 pennies, 24 quarters and 36 nickels. He
wants to arrange the coins into rows. Each row will have the same number of
coins. How many coins can he put in each row?
5.2 Factors and Divisibility
11/10/15
Divisibility Rules- A number divisible by another number
if the quotient is a county number and the remainder is a "0".
COPY ON A ONE SHEET LARGE ENOUGH TO SEE
Divisibility Rules:
Numbe Divisibility Rule
r
2
The number is even.
3
The sum of the digits
is divisible by 3.
5
The last digit is 0 or
5.
6
The number is even
and divisible by 3.
Ex: 18, is even and can be divided by 3.
9
The sum of the digits
is divisible by 9.
Ex: 108- when added together you get the number 9,
9 can be divided by 9.
Ex: the digit 272 + 7= 9 (9 can be divided by 3)
Ex: 10, 15, 100, 2,555 can all be divided by 5.
5.4 Factors and Multiples
11/16/15
Toy animals are sold in sets of 3, 5, 10 and 12. Mason wants to make a display
with 3 animals in each row. Which sets could he buy, if he wants to display all of
the animals?
Must know if 3 is a factor of the numbers (animals).
Is 3 a factor of__?
3:
5:
10:
12: