Arrays
Which 2 expressions describe this array?
O O O O
O O O O
O O O O
a. 4 + 4 + 4
b. 5 + 5
c. 4 x 3
d. 4 x 4
5 friends go to the movies. Popcorn costs $2 and soda costs $1. How much money will they spend if each friend gets a popcorn and a soda?
5 x 2 = 10
5 x 1 = 5
10 + 5 = $15
10 x 3
30
Fill in the blank to find 6 x 3. Use the array to help.
O O O O O O
O O O O O O
O O O O O O
6 x 3 = (6 x 2) + ( __ x 1)
= 12 + ___
= 18
6 x 3 = (6 x 2) + ( 6 x 1)
= 12 + 6
= 18
Ms. C and her friends are ordering pizza. They have $30 to spend. Each pizza costs $7. If they order 3 pizzas, how much money will be left over?
7 x 3 = 21
30 - 21 = $9
24 / 6 =
4
Create an array for this expression: 5 x 4
O O O O
O O O O
O O O O
O O O O
O O O O
OR
O O O O O
O O O O O
O O O O O
O O O O O
Jeyson wants to buy 4 markers from Hive Prime. He has 10 bee bucks. Each marker costs 2 bee bucks. How many bee bucks will he have left over?
4 x 2 = 8
10 - 8 = 2 bee bucks
8 x 2 =
16
Split the array to solve 4 x 8
O O O O O O O O
O O O O O O O O
O O O O O O O O
O O O O O O O O
O O O O O O O O
O O O O O O O O
O O O O O O O O
O O O O O O O O
4 x 4 4 x 4
4 x 8 = 4 x 4 + 4 x 4 = 16 + 16 = 32
There are 18 students in Ms. C's class. 3 students sit at each lunch table. How many tables do they use?
18 / 3 = 6 tables
6 x 3 =
18
Which 2 expressions match the array?
O O O O O O O
O O O O O O O
O O O O O O O
O O O O O O O
b. 7 + 7 + 7 + 7
c. 7 x 4
d. 4 x 5
If Ms. C brings 21 cookies to work and hands them out to 7 coworkers, how many cookies will each coworker get?
21 / 7 = 3 coworkers
10 x 10 =
100