Multiplication Lesson With Arrays And Repeated Addition

Multiplication Lesson with Arrays and Repeated addition

Presentation

•

Mathematics

•

3rd Grade

•

Practice Problem

•

Medium

•

CCSS

3.OA.A.1, 2.OA.C.4, 1.NBT.A.1

Standards-aligned

Kaylee Johnson

Used 12+ times

FREE Resource

11 Slides • 26 Questions

Multiply: Equal Groups Using Repeated Addition and Arrays

Multiple Choice

POP QUIZ: How many rows are shown on the array?

6 rows

2 rows

3 rows

8 rows

Tips

Rows before Columns when you write an equation to match the array
Each group or row has an equal amount
Check your product/answer using repeated addition.
Commutative Property: If the two factors are reversed, you still get the same product. 2 x 3 = 3 x 2

Multiple Choice

How many rows?

How many columns?

3 rows

4 columns

4 rows

4 columns

3 rows

3 columns

4 rows

4 columns

Multiple Choice

Which sentence is correct?

Rows go side to side, columns go side to side.

Rows go up and down, columns go up and down.

Rows go side to side, columns go up and down.

Rows go up and down, columns go side to side.

Multiple Choice

How many columns are shown in this array?

Do 10 jump squats!

Remember... rows before columns.

There are different ways to figure out how many total circles are in this array.

4 + 4 + 4 =12

You can add up the circles in each row.

4 , 8, 12

You can skip count by 4 three times.

4 8 12

Let's try one together......

Think (on your own) -

How many rows?

How many colums

You can multiply the number of rows by the number in each row.

1. 2. 3. 4.

Multiple Choice

Which number sentence represents this array correctly?

5 x 2 = 10

2 x 5 = 10

Multiple Choice

Which number sentence represents this array correctly?

3 x 6 = 18

6 x 3 = 18

Do 18 high knees!

Remember... an array model should have equal groups.

Let's try one together......Pair (shoulder partner)

How would you write a multiplication equation to match this array?

Let's try one together......Pair (shoulder partner) -

How would you write a repeated addition sentence to match this array?

Multiple Choice

How would you write a multiplication equation to match this array?

4 x 4 x 4 x 4 = 16

4 x 4 = 16

Multiple Choice

Which of the following shows a repeated addition sentence to match this array?

4 + 4 + 4 + 4 = 16

4 + 4 + 4 = 12

Multiple Choice

Which number sentence represents this array correctly?

4 x 5 = 20

5 x 4 = 20

Multiple Choice

6 rows of 4 cars in each row equals...

Multiple Choice

What is the repeated addition sentence for this array?

6 + 6 + 6 + 6

4 + 4 + 4 + 4 + 4 + 4

Drag and Drop

This array shows

rows of 2 cookies equals

cookies.

Drag these tiles and drop them in the correct blank above

Match

Help Demetrius match the array to the equation.

4x10

4x5

4x8

4x3

Multiple Choice

3 rows of 3 sharks in each row equals...

Multiple Choice

What is the repeated addition sentence for this array?

3 + 3 + 3

3 + 3

3 x 3

Do 20 arm circles!

10 going forward and 10 going backward.

Remember... multiplication is repeated addition.

Multiple Choice

What's the equation for this array?

5 x 4 = _

5 x 5 = _

4 x 5 = _

4 x 4 = _

Multiple Choice

What is the repeated addition sentence for this array?

4 + 4 + 4 + 4 + 4

5 + 5 + 5 + 5

4 + 4 + 4 + 4

5 + 5 + 5 + 5 + 5

Multiple Choice

What's the product for this array?

Multiple Choice

Which multiplication statement matches the repeated addition shown?

4 + 4 + 4

3 x 4 = 12

4 x 4 = 16

4 x 2 = 8

4 x 1 = 4

Multiple Choice

Which multiplication statement matches the repeated addition shown?

5 + 5 + 5 + 5

2 x 5= 10

5 x 6= 30

4 x 5= 20

5 x 1= 5

Do 9 standing marches!

Multiple Choice

What multiplication sentence does this repeated addition sentence represent?
6 + 6 + 6 + 6 + 6 + 6 =

6 x 5 =

6 x 6 =

6 + 6 =

6 x 0 =

Multiple Choice

Which repeated addition sentence shows this multiplication sentence?
5 x 7 =

7 + 5 =

5 + 5 + 5 +7 =

7 + 7 +7 + 7 + 7 =

7 + 7 + 7 =

Multiple Choice

How can I represent this array model as a multiplication equation?

6 + 6 = 12

3 x 4 = 12

6 + 3 = 9

6 x 2 = 12

Multiple Choice

Aaron says that he arranged his star collection with 4 rows and 3 stars on each row . Which array model fits the description?

Open Ended

Represent this array as a multiplication equation.

Type response here

Poll

I am comfortable using arrays, equal groups, and repeated addition to solve multiplication problems.

Yes. Absolutely

No way

Kind of

Multiply: Equal Groups Using Repeated Addition and Arrays

Show answer

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