Exploring Multiplication Strategies for 4th Graders

This video tutorial provides a detailed explanation of multiplying multi-digit numbers, focusing on examples like 7,000 times six and 56 times eight. It introduces the associative property of multiplication and demonstrates how to break down numbers for easier calculation. The tutorial also uses visual aids, such as rectangles, to help learners understand the concept of multiplication and its properties.

What is the product of 7,000 and 6?

• 4,200

• 42

• 42,000

• 420

Tags

CCSS.5.NBT.B.5

What property allows us to multiply 7 and 6 before multiplying by 1,000?

• Associative property of multiplication

• Commutative property of multiplication

• Identity property of multiplication

• Distributive property

Tags

CCSS.5.NBT.B.7

What does the associative property of multiplication allow us to do?

• Multiply numbers by their additive inverses

• Change the order of the numbers being multiplied

• Change the grouping of the numbers being multiplied

• Distribute a number over a sum inside parentheses

Tags

CCSS.3.OA.B.5

What is the first step in breaking down the problem 56 times 8?

• Dividing 56 by 8

• Adding 56 and 8

• Multiplying 56 by 8 directly

• Separating 56 into 50 and 6

Tags

CCSS.4.NBT.B.5

What is 50 times 8?

• 58

• 800

• 408

• 400

Tags

CCSS.4.NBT.B.5

What is 6 times 8?

• 68

• 48

• 14

• 64

Tags

CCSS.3.OA.C.7

How many tens are in 50 times 8?

• 5 tens

• 50 tens

• 40 tens

• 8 tens

Tags

CCSS.4.NBT.B.6

What is the final answer to 56 times 8?

• 485

• 408

• 448

• 456

Tags

CCSS.4.NBT.B.5

How can we visualize the multiplication of 56 by 8?

• With a Venn diagram

• Using the area of a rectangle

• By drawing a pie chart

• Through a line graph

Tags

CCSS.4.NBT.B.5

What is the area of the rectangle used to visualize 56 times 8?

• 64 square units

• 8 square units

• 56 square units

• 448 square units

Tags

CCSS.4.NBT.B.5