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What is the defining characteristic of an even number?

• It is divisible by 3.

• It is a prime number.

• It ends with an odd digit.

• It is divisible by 2.

Which of the following numbers is even?

• 22

• 15

• 49

• 37

How can you quickly determine if a number is even?

• Check if it is a prime number.

• Check if it is a multiple of 5.

• Check if it is greater than 10.

• Check if it ends in 0, 2, 4, 6, or 8.

Which of these is a real-life example of using even numbers?

• Counting the number of days in a week.

• Dividing a pizza into equal slices.

• Measuring the height of a building.

• Calculating the area of a triangle.

Why are even numbers important in mathematics?

• They are used to calculate probabilities.

• They are the basis of all prime numbers.

• They help in understanding symmetry and balance.

• They are used to solve quadratic equations.