Multiplication Using Arrays

The video tutorial explains how to use arrays to represent multiplication problems. It begins with a class example, showing how students can be organized into an array to visualize multiplication. The tutorial then provides various examples, such as stars, cookies, and cards, to demonstrate creating arrays from multiplication problems and vice versa. It also includes practical problems like bean planting to reinforce the concept. The video concludes with a review, emphasizing that arrays help visualize multiplication, making it easier to understand and solve multiplication problems.

How many rows are there in the array if a class is divided into 6 groups with 4 students each?

• 8 rows

• 10 rows

• 6 rows

• 4 rows

If you have 3 groups of stars with 5 stars in each group, how many stars are there in total?

• 18 stars

• 10 stars

• 12 stars

• 15 stars

Mary is baking cookies. She has 3 groups of 4 cookies. How many cookies does she have in total?

• 12 cookies

• 14 cookies

• 10 cookies

• 8 cookies

What multiplication sentence represents an array with 2 rows and 5 columns?

• 2 x 3

• 2 x 5

• 3 x 5

• 5 x 5

If a friend sets up cards in an array with 5 rows and 10 columns, how many cards are there in total?

• 30 cards

• 50 cards

• 60 cards

• 40 cards

Farmer Nick planted 5 rows of beans with 7 beans in each row. How many beans did he plant in total?

• 40 beans

• 35 beans

• 30 beans

• 25 beans

What is the total number of objects in an array with 4 rows and 2 columns?

• 6 objects

• 8 objects

• 10 objects

• 12 objects