1 is the multiplicative identity.
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When you multiply a number times 1, you can get the same number multiplicative identity. When you add a 0 to a number, you can get the same number additive identity.
Additive identity = 0Multiplicative identity = 1.
The additive identity is 0. The identity in a mathematical operation is the value that when the operation is performed, does not change the original value of the other operand. The additive identity is the number that, when added to another number, returns a value equal to the other number.
additive inverse is when in an equation there is a plus zero. you automatically know that anything plus 0 is still that number, so that is additive identity.
It is the negative of the number.