Exploring Factors of Counting Numbers

This video tutorial covers math lesson 8.3, focusing on factors of counting numbers. It includes warm-up exercises, solving multiplication problems, and practical applications like packing juice bottles and seating arrangements. The lesson emphasizes understanding factor pairs and using visual aids like arrays. Students are guided through exercises in their math journals and encouraged to explore different configurations for given problems.

What is the product of 2 and 5?

• 10

• 7

• 15

• 20

What is the result of 3 times 10?

• 3

• 300

• 13

• 30

How many ways can 16 bottles be arranged in cartons?

• 4

• 3

• 2

• 5

How many rows of 4 bottles each can you make with 16 bottles?

• 6

• 3

• 5

• 4

What are the factor pairs of 18?

• 1 & 18, 3 & 6

• 2 & 9, 3 & 6

• 1 & 18, 2 & 9, 3 & 6

• 1 & 18, 2 & 9

What two numbers multiplied together give 27?

• 3 and 9

• 27 and 1

• Both 3 and 9, and 27 and 1

• None of the above

What is a possible seating arrangement for 24 people using factor pairs?

• 6 tables of 4

• 3 tables of 8

• 5 tables of 5

• Both 3 tables of 8 and 6 tables of 4

What is the factor pair of 24 that involves the number 6?

• 6 and 4

• 6 and 6

• 12 and 2

• 8 and 3

What is 80 times 2?

• 16

• 160

• 800

• 1600

What fraction represents half of the shaded area in the rectangles?

• 3/6

• 1/2

• Both 1/2 and 3/6

• 2/4