Maths

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Across
  1. 2. The total obtained by adding two or more numbers together.
  2. 4. The, opposite of addition.
  3. 5. A shape with three sides.
Down
  1. 1. The number that is the result of dividing one number by another.
  2. 2. A shape with four sides of equal length.
  3. 3. The smallest prime number.