Exploring Multiplicative Comparison Concepts

The video tutorial introduces the concept of comparing numbers using multiplication. It presents a problem where Bobby has 15 pencils and Sally has three times as many. The teacher explains how to use multiplicative comparison to solve the problem, emphasizing visualization and repeated addition as multiplication. The solution is demonstrated through a step-by-step multiplication process, concluding with Sally having 45 pencils. The video encourages students to practice similar problems independently.

How many pencils does Bobby have?

• 20

• 25

• 10

• 15

Tags

CCSS.4.OA.A.2

If Sally has three times as many pencils as Bobby, how many pencils does she have?

• 30

• 35

• 45

• 40

Tags

CCSS.1.NBT.B.3

What is the term used to describe comparing numbers using multiplication?

• Multiplicative comparison

• Subtractive comparison

• Additive comparison

• Divisive comparison

Tags

CCSS.1.OA.A.1

Why is it helpful to visualize the problem even if you don't draw an actual picture?

• It makes the problem more interesting

• It helps in understanding the problem better

• It is a requirement

• It saves time

Tags

CCSS.3.OA.A.3

How many pencil boxes does Sally have if each box contains 15 pencils?

• 1

• 2

• 3

• 4

Tags

CCSS.3.OA.A.1

What is another way to express repeated addition?

• Division

• Subtraction

• Addition

• Multiplication

Tags

CCSS.3.OA.A.1

What is the result of multiplying 15 by 3?

• 45

• 40

• 35

• 30

Tags

CCSS.4.NBT.B.5

What is the purpose of regrouping in multiplication?

• To make the problem easier

• To handle carrying over in the tens place

• To add more numbers

• To subtract numbers

Tags

CCSS.2.OA.C.4

What does the repeated addition of 15 three times equal?

• 45

• 40

• 35

• 30

Tags

CCSS.2.OA.C.4