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2 cards from this section. Quick, good the night before a test.
What is the additive identity?
It's the number that doesn't change other numbers when added.
What is the multiplicative identity?
It's the number that doesn't change other numbers when multiplied.
What is the additive identity?
Think about what number, when added, does not change the other number.
True or False: The multiplicative identity is -1.
Focus on what the identity element is for multiplication.
You have 50 apples. If you add 0 apples to your collection, how many do you have?
Recall what happens with the additive identity.
If you have a number 'x' and multiply it by 1, what can you conclude about the value of 'x'?
Consider the definition of multiplicative identity.
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