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What are square and cube numbers? | Year 5 Mathematics PDF Download

Understanding Square Number

What are square and cube numbers? | Year 5 Mathematics

  • A square number is a number that is multiplied by itself. It is also referred to as 'a number squared' and is denoted by the symbol   2.
  • Examples of square numbers:
    • 22 = 2 x 2 = 4
    • 32 = 3 x 3 = 9
    • 42 = 4 x 4 = 16
    • 52 = 5 x 5 = 25
  • The square numbers up to 100 are: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100

Question for What are square and cube numbers?
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Which of the following is a square number?
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Understanding Cube Numbers

  • A cube number is a number that is multiplied by itself twice. It is also known as 'a number cubed' and is represented by the symbol   3.
  • Examples of cube numbers:
    • 23 = 2 x 2 x 2 = 8
    • 33 = 3 x 3 x 3 = 27
    • 43 = 4 x 4 x 4 = 64
    • 53 = 5 x 5 x 5 = 125
  • The cube numbers up to 100 are: 1, 8, 27, 64

Question for What are square and cube numbers?
Try yourself:
Which of the following is a cube number?
View Solution

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FAQs on What are square and cube numbers? - Year 5 Mathematics

1. What are square numbers?
Ans. Square numbers are numbers that result from multiplying a number by itself. For example, 3 x 3 = 9, so 9 is a square number.
2. What are cube numbers?
Ans. Cube numbers are numbers that result from multiplying a number by itself three times. For example, 2 x 2 x 2 = 8, so 8 is a cube number.
3. How are square numbers represented in mathematical notation?
Ans. Square numbers are often represented by placing a small 2 as a superscript after the number. For example, 5 squared is written as 5^2.
4. How are cube numbers represented in mathematical notation?
Ans. Cube numbers are often represented by placing a small 3 as a superscript after the number. For example, 4 cubed is written as 4^3.
5. Can you give an example of a square and cube number?
Ans. An example of a square number is 16 (4 x 4 = 16), and an example of a cube number is 27 (3 x 3 x 3 = 27).
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