2.OA.4 Arrays

Create Your Own Array

100

3x4

X X X     or    X X X X 

X X X            X X X X 

X X X            X X X X 

X X X

200

2 X 5

X X     or    X X X X X 

X X            X X X X X

X X              

X X 

X X

300

3 X 2

X X X     or    X X  

X X X            X X

                    X X

400

4 X 1

X   OR    X X X X

X

X

X

500

3 + 3 +3 + 3 + 3

X X X     or    X X X X X

X X X            X X X X X

X X X            X X X X X

X X X

X X X

Repeated Addition

100

2 x 4

2 + 2 + 2+ 2

or

4 + 4

200

5 x 3

5 + 5 + 5

or

3 + 3 + 3 +3 +3

300

2 x 2

2 + 2

400

3 x 4

3 + 3 +3 + 3 + 3

or

4 + 4 + 4

500

2 x 5

2 + 2 + 2 + 2 + 2

5 + 5

Word Problems

100

There are 3 book shelves. Each bookshelf has 2 books on it. How many books are there on the whole bookshelf?

6

200

There are 5 rows of pumpkins. There are 3 pumpkins in each row. How many pumpkins are there in all?

15

300

There are 5 rows of tomatoes. There are 7 tomatoes in each row. How many tomatoes are on the farm?

35

400

There are 3 rows of bikes. There are 10 bikes in each row. How many bikes are there?

30

500

There are 4 second grade classrooms. Each class has 3 students in each classroom. How many students are there in all the classrooms?

12

Solve It!

100

2 x 3

6

200

5 x 2

10

300

5 x 6

30

400

6 x 4

24

500

10 x 9

90

Multiplication

100

3 + 3 + 3 + 3

3 x 4

200

4 + 4

4 x 2

300

2 + 2 + 2 + 2 + 2 + 2

2 x 6

400

1 + 1 + 1 + 1

1 x 4

500

5 + 5 + 5 + 5 

5 x 4