Multiplication Arrays
How many dots are in 2 rows of 3 dots?
2 x 3 = 6 dots
How many robins did Han see?
Han saw 40 robins
There are 2 baskets with 5 apples in each. How many apples are there?
2 x 5 = 10 apples
What is a scale you could use for a bar graph?
A scale of 1, 2, 5, or 10.
What is 2 x 5?
10
How many dots are in 3 rows of 5 dots?
3 x 5 = 15 dots
Which did Han see more of: cardinals or finches?
Han saw more cardinals than finches.
There are 3 boxes with 10 markers in each box. How many markers are there all together?
3 x 10 = 30 markers
Why might you choose a scale of 5 instead of 1?
A scale of 5 makes the graph easier to read than counting by 1s when values are larger.
What is 5 x 7
35
How many dots are in 4 rows of 6 dots?
4 x 6 = 24
How many more cardinals than finches did Han see?
Han saw 10 more cardinals than finches.
How many items are there in 4 bags with 8 items in each bag?
32 items
What scale would work for data with values 30, 45, 60, and 80?
A scale of 10 would work well because the numbers are large.
What is 10 x 4
40
What are two multiplication expressions that describe an array with 3 rows of 4 dots, and how many dots are in it?
3 x 4 or 4 x 3
How many fewer blue jays did Han see than robins?
Han saw 15 fewer blue jays than robins.
How many rubber bands does Jada have if she has 5 bags with 8 rubber bands in each bag?
40 rubber bands
Why would a scale of 5 work well for data values of 15, 25, 35, and 50?
A scale of 5 would work because all the numbers can be shown and the graph won't be too tall.
What is 2 x 6
12
What expression does not represent 5 groups of 8 dots,
1.) 8 + 8 + 8 + 8 + 8
2.) 5 + 8
3.) 5 x 8
4.) 8 x 5
How many more robins did Han see than blue jays, cardinals, and finches combined?
Han saw 5 more robins than all the other birds combined.
How many players are on the field if 6 teams have 10 players each?
60 players
What scale should you use for the favorite subjects data and why?
use a scale of 10 because the largest value is 46, and counting by 10s to 50 makes the graph easy to read and label.
What is 5 x 8
40