X and / project

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123456
Across
  1. 1. An expression using the term sum.
  2. 4. a number positive or negetive
  3. 5. an expression where one number gets its value taken from another
  4. 6. an expression using a number multiple times
Down
  1. 2. the base of an integer's place
  2. 3. When a number talkes from another multiple times