Understanding Even and Odd Numbers

The video tutorial explains how to determine if a number is even or odd by focusing on the number patterns in the ones place. It addresses common misconceptions about the tens place and provides a step-by-step method using doubles facts. The tutorial includes examples and special cases to reinforce the concept.

What is the most efficient way to determine if a number is even or odd?

• By checking the tens place

• By using number patterns in the ones place

• By drawing pictures

• By adding the digits

What is a common misconception about numbers with an odd digit in the tens place?

• They are prime numbers

• They cannot be split into equal groups

• They are always odd

• They are always even

Why can a number with an odd digit in the tens place still be even?

• Because the sum of digits is even

• Because the number is divisible by 3

• Because tens are always odd

• Because the ones place determines evenness

What is the first step in determining if a number is even or odd?

• Check if the number is divisible by 5

• Look at the tens place

• Look at the ones place

• Add all the digits together

If a number in the ones place can be expressed as a doubles fact, what does it indicate?

• The number is prime

• The number is composite

• The number is even

• The number is odd

What is the result of expressing 4 as a doubles fact?

• 4 is composite

• 4 is prime

• 4 is even

• 4 is odd

Why is the number 67 considered odd?

• Because 6 is odd

• Because it ends with an odd digit

• Because it is not divisible by 2

• Because 7 cannot be expressed as a doubles fact

What makes the number 72 even despite having an odd tens digit?

• The sum of its digits is even

• The ones place can be expressed as a doubles fact

• It is divisible by 3

• It ends with a zero

How can zero be considered in terms of evenness?

• Zero cannot be expressed as a doubles fact

• Zero is always odd

• Zero is neither even nor odd

• Zero plus zero equals zero, making it even

What is the significance of the number 30 in terms of evenness?

• It is composite because it has more than two factors

• It is even because it is made of groups of 10

• It is prime because it is divisible by 3

• It is odd because it ends with zero