Mathematical Measures

Across

1. Quantity described by magnitude only

3. Unit of measurement for angles

5. Fifth letter of the Greek alphabet

6. Symbol representing a number in writing

8. More than one in grammar

9. Halfway mark in a century

12. Headgear covering face and neck

13. Part of a hundred expressed as rate

14. Number after nine hundred ninety nine

Down

2. Create anew or transform completely

4. Two score plus a zero

7. Ordinal position after ninth

10. One fourth portion of a whole

11. Position after seventh in order