Maths Dept

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Across
  1. 5. a rough guess
  2. 7. something that is left over
  3. 8. code craking collective
  4. 9. lots of pieces make a picture
Down
  1. 1. a shape spilt in half
  2. 2. lines running side by side
  3. 3. process of summation
  4. 4. something that you read
  5. 6. the first order of operation