Arrays
Mary planted 3 rows of 4 carrots. Draw an array to represent the carrots.
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* * * *
4 x 7
28
Mike picks 20 apples from his tree. He puts 5 apples in each box. Draw Mike's boxes of apples.
OOOOO
OOOOO
OOOOO
OOOOO
27 divided by 9=
3
Is this sentence true, 3 x 7 = 22
No, it equals 21
Mary has 3 rows of 4 carrots.
* * * *
* * * *
* * * *
She added 2 more rows of carrots. Copy this array and add circles for the two new rows.
* * * *
* * * *
* * * *
0 0 0 0
0 0 0 0
* * * *
* * * *
* * * *
0 0 0 0
0 0 0 0
Write a multiplication equation to represent this whole array.
5 x 5=25
Write a multiplication problem that is represented in this array.
OOOOO
OOOOO
OOOOO
OOOOO
4 x 5= 20
32 divided by 4 =
8
Write a multiplication equation for the following array.
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4 x 6 = 24
* * * *
* * * *
* * * *
0 0 0 0
0 0 0 0
How many fours are in represented by the stars?
3 fours
* * * * * *
* * * * * *
* * * * * *
Write an equation that represents this array. The first factor is the number of rows.
3 x 6 = 18
Write a division sentence to represent this problem.
18 divided by 3 = 6
12 divided by 3 =
4
Is the following true
(2 x 3) + (3 x 3) = 5 x 3
Explain
Yes, Each side equal 15.
* * * *
* * * *
* * * *
0 0 0 0
0 0 0 0
How many fours are in represented by the circles?
2 fours
* *
* *
* *
* *
* *
Write an equation for this array. The second factor is represented by the number of stars in each group.
5 x 2 = 10
Tina plants 18 stocks of corn in 3 rows in her garden.
18 divided by 3 = 6
What does the answer (quotient) represent?
How many stocks of corn are in each row.
40 divided by 5 =
8
Is the following sentence true?
(3 x 4) + (4 x 4) = 7 x 4
Yes, each side equals 28
* * * *
* * * *
* * * *
0 0 0 0
0 0 0 0
___ fours + _____fours= ______fours
3 fours + 2 fours= 5 fours
6 x 7 =
42
Tina plants 18 stocks of corn in 3 rows in her garden. She decides to add 3 more rows of corn in her garden. Draw an array to represent how much corn she has now.
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21 divided by 3 =
7
Is 5 x 6 the same as (3 x 6) + (2 x 6) = 30
Explain
Yes, (3 x 6) + (2 x 6) is using the distributive property to find the product of 5 x 6.