Factors and Multiples
List all the factors of 20
1, 2, 4, 5, 10, 20
8 x 8 = ?
64
Amber bought a pair of pants and a pair of shoes. The shoes cost 3 times as much as the pants. The pants cost $15. How much did the shoes cost?
$45
Draw an array for 3 x 6. Include total area!
18
What is an array?
A rectangle with dimensions that represent a multiplication problem.
List 5 multiples of 4
4, 8, 12, 16, 20, 24, 28, 32, 36, 40...
10 / 5 = ?
2
Jamal bought a book and a CD. The book cost $14. The CD cost $7. How many times more than the CD did the book cost?
2 times more
Draw an array for 4 x 5 Include total area!
20
What is a multiple?
The result of one number multiplied by another. The answer!!
How many factor pairs does 9 have?
2
9 x 6 = ?
54
Abby saw 3 rows of crayons in her 24-count box. How many crayons are in each row?
8 crayons
Draw an array for 9 x 7 Include total area!
63
What is the "double-double"
A multiplication strategy where your double your number, and then double it again to find your final answer. (x4)
List 10 multiples of 6
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72...
24 / 6 = ?
4
Hamburger buns come in packages of 8. Joey has 56 hamburger buns. How many packages does he have?
7 packages
Draw an array for 20 x 4 Include total area!
80
What is a T-chart/list of numbers/values that helps us to find relationships and solve for unknown numbers in a problem?
Ratio table
List all the factors of 36
1, 2, 3, 4, 6, 9, 12, 18, 36
50 x 4 = ?
200
Each of the 3 students at the red table has 6 markers. The class has 5 times as any markers as the entire red table. How many markers total does the whole class have?
90 markers
Draw an array for 16 x 15 Include total area!
240
What are dimensions?
The two different numbers that make up an array. (length x width)