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Last updated on July 3rd, 2025

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Even Numbers 20 to 30

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Even numbers are a fundamental concept in mathematics and they are integers divisible by 2 without remainder. Even numbers play a significant role in organizing data, architecture, pairing, and grouping items equally. In this topic, we will learn about even numbers between 20 and 30.

Even Numbers 20 to 30 for Australian Students
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Even Numbers 20 to 30

Even numbers are the numbers that are divided by 2 evenly without remainder. All even numbers are multiples of 2. The last digit of even numbers always ends with 0, 2, 4, 6, or 8. There are a total of 6 even numbers ranging from 20 to 30. The even number follows a simple formula of 2n, where n is an integer.

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Even Numbers 20 to 30 Chart

Learning about even numbers can be made easier with a visual aid that helps children grasp the concept more effectively. A chart allows them to recognize the sequence of even numbers more clearly. Here’s a list of even numbers from 20 to 30:

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List of Even Numbers 20 to 30

Even numbers are expressed in the form of ‘n = 2k’. Here, ‘k’ is an integer, and ‘n’ is the number. These numbers are divisible by 2 and the remainder equals zero. Now, let us list the even numbers 20 to 30. The even numbers from 20 to 30 are as follows: 20, 22, 24, 26, 28, and 30. There are a total of 6 even numbers.

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Sum of Even Numbers 20 to 30

To find the sum of even numbers, the formula is - S = n(n+1), where ‘n’ is the count of even numbers, and ‘S’ is the sum. There are a total of 6 even numbers between 20 and 30. Thus, we can calculate the sum directly as: S = 20 + 22 + 24 + 26 + 28 + 30 = 150 Therefore, 150 is the sum of all even numbers from 20 to 30. If we add an even number to another even number, the answer will always be an even number. Even numbers are multiples of 2. The sum of two multiples of 2 is also another multiple of 2; therefore, it is always an even number. For example, 22 + 28 = 50

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Subtraction of Even Numbers 20 to 30

Subtraction of even numbers involves subtracting each even number from the next. Each even number is uniformly spaced by 2. If we subtract two even numbers, it gives an even number as the result. For example, 28 - 20 = 8 30 - 22 = 8 24 - 20 = 4

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Even Numbers 20 to 30 Examples

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Problem 1

Find the sum of even numbers between 20 and 30.

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150 is the sum of even numbers between 20 and 30.

Explanation

As we know, 20, 22, 24, 26, 28, and 30 are the even numbers between 20 and 30. Next, we need to calculate the sum of these numbers. 20 + 22 + 24 + 26 + 28 + 30 = 150 The sum of even numbers 20 to 30 is 150.

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Problem 2

Jack has 6 apples. He wants to divide them equally between his 2 friends. How many apples will each friend get?

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Each one gets 3 apples.

Explanation

There are 6 apples with Jack, and it is an even number. So he has to divide equally between his 2 friends, making it — 6 ÷ 2 = 3, therefore, each friend gets 3 apples.

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Problem 3

In a class, there are 30 desks. Each desk is labeled with a number. All the even-numbered desks are reserved for left-handed students. How many even-numbered desks are there?

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15 desks.

Explanation

To find the even-numbered desks in the class, we divide the total number of desks by 2. Because only the even-numbered desks are reserved for left-handed students. 30 ÷ 2 = 15 So, 15 desks are reserved for left-handed students in the class.

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Problem 4

Emily has 4 cats, 2 dogs, and 6 canaries. Each pair of legs makes an even number. How many legs do all the animals have?

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36 legs in total.

Explanation

First, we have to calculate the total number of legs for each type of animal: Cats have 4 legs, and there are 4 cats, therefore: 4 × 4 = 16 Dogs have 4 legs, and there are 2 dogs, therefore: 2 × 4 = 8 Canaries have 2 legs, and there are 6 canaries, therefore: 6 × 2 = 12 Therefore, the total number of legs all the animals have is 16 + 8 + 12 = 36. The animals have 36 legs in total.

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Problem 5

There are 26 people in a room. If the people are grouped into sets of 2, how many sets are there?

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13 sets.

Explanation

Grouping into sets of 2 means dividing the total number of people by 2. We need to calculate it as: 26 ÷ 2 = 13. If the people are grouped into sets of 2, there are a total of 13 sets.

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FAQs on Even Numbers 20 to 30

1.What are even numbers?

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2.How many even numbers are there between 20 and 30?

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3.Are all multiples of 2 even numbers?

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4.Is it possible for a negative number to be an even number?

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5.What are the largest and smallest even numbers between 20 and 30?

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6.How can children in Australia use numbers in everyday life to understand Even Numbers 20 to 30?

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7.What are some fun ways kids in Australia can practice Even Numbers 20 to 30 with numbers?

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8.What role do numbers and Even Numbers 20 to 30 play in helping children in Australia develop problem-solving skills?

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9.How can families in Australia create number-rich environments to improve Even Numbers 20 to 30 skills?

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Important Glossaries for Even Numbers 20 to 30

Even number: Even numbers are those that can be divided by 2 without leaving any remainder. It has a formula of 2n, where n is an integer. The last digit of even numbers always ends in 0, 2, 4, 6, or 8. For example, 22, 24, 30 are some even numbers. Multiple: A number that is a product of multiplying a number by an integer. For instance, 20, 22, 24, 26, etc., are the few multiples of 2. These numbers result from multiplying 2 by other integers. Remainder: For even numbers, when divided by 2, the remainder is always zero. If we divide a number by another, the leftover value is known as the remainder. Integer: A whole number that can be positive, negative, or zero. Integers do not include fractions or decimals. Sum: The result of adding two or more numbers. For even numbers, the sum of two even numbers is always another even number.

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Hiralee Lalitkumar Makwana

About the Author

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.

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Fun Fact

: She loves to read number jokes and games.

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