Math

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Across
  1. 2. a number on its own
  2. 5. you use it to make your lines straight
  3. 6. an instrument that you use to make a circle
  4. 8. it's a type of angle that is straight
Down
  1. 1. it has letters in the sum
  2. 3. it's the opposite of a division
  3. 4. what you got on a test, but out of a hundred
  4. 7. the average in a number phrase