Array
Order and Grouping
Place Value
Word Problems
Meaning of Multiplication
100
Draw an array to represent: 3 x 5
Label your rows and columns
What is the product?
3 rows x 5 columns = 15 total
100
Does the order of the factors matter when you are multiplying?
No, you can put them in any order and still get the same product.
100
What is the product of 3 x 90?
270
100
I have 2 pots of 3 flowers. How many flowers do I have in all?
6 flowers in all
100
Define the word: Product
The answer to a multiplication equation
200
Draw an array to represent: 6 x 1
Label your rows and columns
What is the product?
6 rows x 1 column = 6 total
200
Multiply these three factors: 3, 7, and 2
What is the product?
42
200
Explain the rule to use if you are multiplying with a factor that ends in a 0 or more than one 0
You take away the zero/zeros and add them back to the product in the end
200
A shelf has 6 rows. Each row holds 7 books. How many books fit on the shelf?
42 books fit on the shelf
200
Define rows and columns
Rows represent the equal groups and go side to side
Columns represent the items in the equal groups and go up and down
300
If I want to split up the rows in this expression, which factor would I split up?
5 x 9
5
300
Show how to break apart one of the factors in this expression then find the product:
9 x 8
Sample answer:
(9 x 5) + (9 x 3) =
45 + 27 = 72
300
What is the product of 50 x 6?
300
300
A toy store puts 9 toy cars in each pack. If they make 8 packs, how many toy cars do they have?
72 toy cars
300
Define the word: Factor
a number that you multiply
400
Draw an array for 2 x 7
Split up the columns
What is your new expression using parenthesis?
What is the product?
Sample answer :
(2 x 5) + (2 x 2) =
10 + 4 =
14
400
Multiply these three factors: 6,8, and 9
Find the product
432
400
What is the product of 10 x 100?
1,000
400
A school buys 5 boxes of crayons. Each box has 12 packs of crayons. Each pack has 4 crayons inside.
How many crayons did the school buy in total?
12 packs × 4 crayons = 48 crayons per box
48 × 5 boxes = 240 crayons
400
Explain what all of these symbols and numbers are called: 2 x 9 x 3 = 54
2 is a factor
x means multiply
9 is a factor
x means multiply
3 is a factor
= means equal
54 is the product
500
What is the equation for this array? What is the product?
4 x 8 = 32
500
Show two different ways to group two of the factors in this expression and solve BOTH using parenthesis:
2 x 4 x 7
Possible answers:
(2 x 4) x 7
(7 x 2) x 4
500
What is the product of 80 x 500?
40,000
500
A snack table has 3 trays.
Each tray has 5 bowls, and each bowl has 12 pretzels.
If the teacher wants twice as many pretzels for the party, how many pretzels does she need in all?
5 × 12 = 60 pretzels per tray
60 × 3 = 180 pretzels
Twice as many = 180 × 2 = 360 pretzels
500
What is multiplication?
answers differ