Arrays
4 x 5 = ?
Break this up into two smaller arrays
*Could be multiple answers
3 x 5 + 1 x 5
Use the Alien Method to Solve:
7 x 3 = ?
21
8 x (3 x 2) =
8 x 6 =
48
Find the larger array, and solve.
3 x 4 + 5 x 4
8 x 4 = 32
10 x 6 = $60
5 x 6 = ?
Break this up into two smaller arrays. Then solve.
*Could be multiple answers
2 x 6 + 3 x 6
5 x 6 = 30
Use the Alien Method to Solve:
4 x 9 = ?
36
7 x (4 x 2) = ?
7 x 8 = 56
Find the larger array, and solve.
5 x 10 + 6 x 10 =
11 x 10 = 110
Michael's family rented a canoe for 6 hours on Monday and 2 hours on Tuesday. If the canoe costs $6 an hour, how much did it cost?
6 x $6 = $36
2 x $6 = $12
$12 + $36 = $48
6 x 8 = ?
Break this up into two smaller arrays. Then solve.
*Could be multiple answers
Example: (4 x 8) + (2 x 8)
Use the Alien Method to Solve:
12 x 6 = ?
72
3 x (5 x 2) = ?
3 x 10 = 30
Find the larger array, and solve.
11 x 5 + 11 x 4 =
11 x 9 = 99
Kim is 9 years old. Her aunt is 6 times as old as she is. How many years old is Kim's aunt?
9 x 6 = 54
10 x 3 = ?
Break this up into two smaller arrays. Then solve.
*Could be multiple answers
Ex. (8 x 3) + (2 x 3)
Use the Alien Method to Solve:
8 x 7 = ?
56
3 x (3 x 2) = ?
3 x 6 = 18
Find the larger array, and solve.
5 x 10 + 3 x 10
8 x 10 = 80
A farm stand has containers of blueberries on 2 shelves. Each shelf has 3 containers. Each container holds 10 blueberries. How many blueberries will be displayed in all?
2 x 3 x 10
(2 x 3) x 10
6 x 10 = 60
8 x 8 = ?
Break this up into two smaller arrays. Then solve.
*Could be multiple answers
Ex. (4 x 8) + (4 x 8) =
Use the Alien Method to Solve:
12 x 12 = ?
144
5 x (2 x 4) = ?
5 x 8 = 40
Find the larger array, and solve.
9 x 4 + 9 x 4 =
9 x 8 = 72
A bakery uses 4 cups of flour for each loaf of bread. There are 2 loaves of bread on a tray. There are 5 trays on a cart. How many cups of flour will be used to make the bread on the cart?
4 x 2 x 5
(4 x 2) x 5
8 x 5 = 40