In this video, Jonathan Lambert from the National College of Ireland presents a proof that the sum of two odd numbers is always an even number. The video begins with an introduction to the topic and the objective of the proof. It then explains the definition of odd numbers using the division algorithm. The proof is set up by defining two odd integers and proceeds by adding these numbers together, simplifying the expression, and concluding that the result is an even number. The video ends with closing remarks and thanks from the presenter.

What is the main goal of the video tutorial?

• To prove that the sum of two even numbers is odd

• To demonstrate that all numbers are even

• To discuss the properties of prime numbers

• To prove that the sum of two odd numbers is even

Tags

CCSS.2.OA.C.3

What must be true for a number to be considered odd according to the division algorithm?

• It is divisible by 2 without any remainder

• It has a remainder of 1 when divided by 2

• It cannot be divided by 2

• It has a remainder of 0 when divided by 2

Tags

CCSS.2.OA.C.3

In the proof, what form do the variables a and b take?

• a = 2m and b = 2n

• a = m/2 and b = n/2

• a = 2m + 1 and b = 2n + 1

• a = 2m - 1 and b = 2n - 1

Tags

CCSS.3.OA.D.9

What mathematical property is used to define odd numbers?

• Addition

• Multiplication

• Division

• Subtraction

Tags

CCSS.5.OA.B.3

What does the division algorithm help to establish about odd numbers?

• They are divisible by 3

• They have a remainder of 1 when divided by 2

• They can be divided by 2 without remainder

• They are always greater than even numbers

Tags

CCSS.6.EE.A.3

What does the sum a + b simplify to in the proof?

• 2(m + n + 1)

• 2m + 2n

• m + n

• 2m + 2n + 2

Tags

CCSS.3.OA.D.9

What is the result of adding two odd numbers according to the proof?

• An odd number

• An even number

• A prime number

• A composite number

Tags

CCSS.7.EE.A.1

Which mathematical concept is used to simplify the expression 2m + 1 + 2n + 1?

• Distributive property

• Commutative property

• Factoring

• Associative property

Tags

CCSS.3.OA.D.9

What conclusion is reached about the sum of two odd numbers?

• It is undefined

• It is always even

• It can be either odd or even

• It is always odd

Tags

CCSS.3.OA.D.9

What does the variable 'P' represent in the proof?

• The product of m and n

• The difference between m and n

• The sum of m and n

• The sum of m, n, and 1