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Properties of Whole Numbers - Identity of Addition and Multiplication

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Identity of addition and multiplication:

Identity means that whatever the number or value may be, the answer stays the same in mathematical operations like addition and multiplication.

1. Additive Identity:

  • Additive identity means that we get the same whole number when added to another whole number.
  • Zero is called an identity for the addition of whole numbers or additive identity for whole numbers i.e., a + 0 = a, (a is any whole number).
  • Example, 0 + 15 = 15

2. Multiplicative Identity:

  • Multiplicative identity means that we get the same whole number when multiplied by another whole number.
  • Zero has a special role in multiplication too. Any number, when multiplied by zero, becomes zero. Example, 5 × 0 = 0
  • 1 is the identity for multiplication of whole numbers or multiplicative identity for whole numbers.
  • Example, 1 × 100 = 100.
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