Arrays
Create an array that represents 4 x 5.
. . . . .
. . . . .
. . . . .
14, 17, 20, 23, 26, __, __, __
Fill in the next three numbers. Are they even or odd?
29 odd, 32 even, 35 odd
Fill in the blank:
8 x 4 = 4 x ___
8
What is another way to express (7 x 4) x 3?
4 x (7 x 3)
What expression could be used to solve 7 x 8?
(7 x 5) + (7 x 3)
DJ planted a garden that had 4 rows of roses, 3 rows of sunflowers, and 2 rows of daisies. Each row had 5 flowers. How many flowers were in the garden?
45 flowers
Adding 7.
Which expression is the same as 5 x 6 x 7?
6 x 5 x 7
7 x 5 x 6
6 x 7 x 5
(6 x 2) x 5 = 2 x (__ x 5)
Fill in the blank and solve.
6.
60 = 60
Use the distributive property to solve: 5 x 9.
(5 x 5) + (5 x 4)
25 + 20
45
Create a word problem for the expression 6 x 5.
Answers will vary.
22, 19, 16, 13, 10.
Create a pattern that follows the same rule.
Subtracting 3.
Sammy wants to plant a garden with 32 flowers total, with 8 rows of flowers and 4 flowers in each row. What is another way to plant this garden?
4 rows of flowers with 8 in each row.
What expression could you use to solve 6 x 12?
(6 x 10) + (6 x 2)
60 + 12
72
Create an array to represent 3 x 8.
. . . . . . . .
. . . . . . . .
. . . . . . . .
11, __, 19, 23, __, __.
Fill in the blanks
15, 27, 31.
Josiah is the manager for the school basketball team. If he has 5 bags of basketballs, each bag with 4 balls, how many balls does he have altogether? Is there another way to organize the basketballs so he has less bags?
20 basketballs altogether
Yes, 4 bags with 5 basketballs each
Jonathan wanted to solve for 4 x 9. He used the distributive property and did the following:
1. 4 x 9
2. (4 x 4) + (4 x 5)
3. 16 x 20
4. 320
In which step did Jonathan make a mistake? What mistake did he make?
Jonathan made a mistake in step 3. He multiplied instead of added the numbers.
Kaylee wanted to draw an array that represented 3 x 6. She drew:
. . .
. . .
. . .
. . .
. . .
. . .
Was she correct? Why or why not?
Negative! Kaylee drew an array that represents 6 x 3.
What is true about the pattern below?
2, 4, 6, 8, 10
Adding by 2s.
Even numbers.
Laura is stacking chairs for her teacher. She has 6 stacks of 4 chairs. What is another way she can stack the chairs?
4 stacks of 6 chairs.
Cameron wants to solve 6 x 13 using the distributive property. What should he do? Explain in steps.
1. Break apart 13
(6 x 10) + (6 x 3)
2. Multiply
60 + 18
3. Add
78