Write the Word or Phrase That Best Completes Each Statement $a \times 10 ^ { n } , \text { where } 1 \leq | a | < 10$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
Provide the missing information.
-A number expressed in the form $a \times 10 ^ { n } , \text { where } 1 \leq | a | < 10$ nd n is an integer is said to be written
in notation.