Arithmetic properties: Identity property
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Intros
Lessons
- Introduction to the identity property of addition and multiplication (and properties of zero):
- Showing that
- Why is it called the "identity" property?
- Showing that a × 1 = a
- The general formulas for the identity property
- The three properties of zero involving multiplication and division (a × 0 = 0; 0 ÷ a = 0; and a ÷ 0 = undefined)
- The general formulas for the properties of zero
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Examples
Lessons
- Additive identity property of 0
Use the additive identity of 0 to fill in the blanks. - Multiplicative identity property of 1
Use the multiplicative identity of 1 to fill in the blanks. - Multiplying and dividing using properties of 0
Use the properties of 0 to fill in the blanks. - Identity properties and all four operations
What happens to the identity of number 46 when: - Identity properties word problem
If , and are real numbers with secret identities:
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