Multiplying by a Multiple of 10 Using Arrays

This lesson teaches how to multiply numbers by multiples of 10 using arrays. It explains the concept of multiples of 10 and arrays, and demonstrates multiplication problems such as 6 times 30, 5 times 20, 30 times 7, and 50 times 6. The lesson emphasizes the arrangement of rows and columns in arrays to simplify multiplication, and concludes with a summary of the techniques learned.

What is a multiple of 10?

• A number that can be divided by 5

• A number that is a product of 10 and another number

• A number that is less than 10

• A number that is a product of 5 and another number

How can 6 times 30 be represented using arrays?

• 3 rows of 6

• 30 rows of 6

• 6 rows of 30

• 6 rows of 3

What is the result of 5 times 20 using arrays?

• 50

• 150

• 100

• 200

How can 30 times 7 be rewritten for easier calculation?

• 7 times 30

• 3 times 7

• 30 times 3

• 7 times 3

What is the final result of 6 times 50 using arrays?

• 350

• 150

• 250

• 300