The Scrapyard Crossword

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Across
  1. 2. What you get when you divide a number by 2
  2. 5. The total marks you can get on an Entry 3 exam
  3. 6. A single number with 3 zeros at the end
  4. 8. The first number after the decimal is the 1st Decimal _____?
  5. 10. The number on top of a fraction
Down
  1. 1. 57 Rounded to the nearest 10
  2. 3. An angle smaller than 90 degrees
  3. 4. What is the name for the space on the inside of the shape?
  4. 7. A shape with 8 regular sides
  5. 9. A method for doing multiplication without a calculator