Exploring Addition Properties in Mathematics

The video tutorial introduces third graders to three key addition properties: commutative, zero, and associative. The commutative property shows that changing the order of addends does not affect the sum. The zero property states that adding zero to any number results in the same number. The associative property explains that the grouping of addends does not change the sum. The video includes examples and a practice problem to reinforce these concepts.

What does the commutative property of addition state?

• The sum changes when the order of addends is changed.

• Only zero can be added to get the same number.

• Addition is possible only in ascending order.

• The sum remains the same regardless of the order of addends.

If you have 4 apples and add 2 more, what is the sum according to the commutative property?

• 8

• 4

• 2

• 6

Can the order of addends be changed without affecting the sum, according to the commutative property?

• Yes

• No

• Only with zero

• Only in subtraction

What does the zero property of addition state?

• The sum of any number and zero is that number.

• Zero can only be added to itself.

• Adding zero to a number doubles it.

• Adding zero to a number changes its value.

According to the zero property, what is 100 + 0?

• 0

• 1

• 100

• 200

What is the result of adding zero to any number?

• It doubles the number

• It halves the number

• It does not change the number

• It resets the number to zero

What does the associative property of addition state?

• Changing the grouping of addends changes the sum.

• The sum is affected by the order of numbers.

• Changing the grouping of addends does not change the sum.

• Associative property applies only to subtraction.

Using the associative property, what is (5 + 3) + 4 equal to?

• 12

• 8

• 9

• None of the above

If you group addends differently using the associative property, will the sum be 15 for 8 + (2 + 5)?

• Yes

• It will be 10

• It will be 20

• No

What is the sum of 2 + 5 in the context of associative property?

• None of the above

• 10

• 5

• 7