Multiplication: Solving Problems with Arrays

The video tutorial teaches how to solve multiplication problems using arrays. It begins with a practical problem of arranging chairs for students, introducing multiplication as repeated addition. The concept of arrays is explained, showing how they represent multiplication problems with rows and columns. Examples of creating arrays for different multiplication problems are provided, including 4x4 and 6x2 arrays. Finally, the tutorial returns to the initial problem, using arrays to confirm there are enough chairs for the students.

What is the result of 5 multiplied by 3 using repeated addition?

• 10

• 25

• 15

• 20

How many marks are there in a 4 by 4 array?

• 14

• 18

• 12

• 16

What is the product of 6 multiplied by 2 when represented as an array?

• 16

• 14

• 12

• 10

How many chairs are needed for 30 students if there are 4 rows with 9 chairs each?

• 28

• 36

• 30

• 32

What is the total number of chairs in the array created for 4 rows with 9 chairs each?

• 36

• 34

• 32

• 30