Understanding the Commutative Property

The video tutorial explains the commutative property of multiplication using arrays. It demonstrates how to rearrange multiplication problems to make them easier to solve, using examples like 5 * 7 and 3 * 8. The tutorial also introduces the concept of balancing equations with a teeter-totter analogy and shows how to find missing numbers in multiplication problems using the commutative property.

What is the commutative property in multiplication?

• A property that allows numbers to be added in any order.

• A property that allows numbers to be multiplied in any order.

• A property that allows numbers to be subtracted in any order.

• A property that allows numbers to be divided in any order.

In the 5x7 array example, how many groups are there initially?

• 5 groups

• 7 groups

• 8 groups

• 3 groups

Why is it easier to count by fives in the 5x7 array example?

• Because there are fewer groups.

• Because the groups are larger.

• Because counting by fives is generally easier.

• Because the numbers are smaller.

What is the result of 5x7 using the commutative property?

• 30

• 35

• 45

• 40

In the 5x7 example, what is the final product after using the commutative property?

• 45

• 40

• 35

• 30

In the 3x8 example, what is the benefit of rearranging the groups?

• It complicates the problem.

• It makes the numbers larger.

• It makes the numbers smaller.

• It simplifies counting by using smaller numbers.

In the 3x8 example, what is the new arrangement of groups?

• 5 groups of 7

• 3 groups of 8

• 7 groups of 5

• 8 groups of 3

What is the result of 3x8 using the commutative property?

• 24

• 30

• 27

• 21

How does the commutative property help with counting by smaller numbers?

• By decreasing the number of groups.

• By ignoring the groups.

• By rearranging the groups to use smaller numbers.

• By increasing the number of groups.

What is the result of 8x3 using the commutative property?

• 21

• 24

• 27

• 30