Answers

1. Answer:

   All your doing is going over your work to make sure you did not miss anything on the test and that u completed the whole test make sure to put your whole full name on the paper and the date.

   Step-by-step explanation:

   the simple answer

   brailiest pls

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2. Answer:

   it means use other ways/methods that will lead you to the same answer e.g 45+45=90 or 90-45=45

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