Numbers and Connections

Across

1. Power measurement in electrical devices

3. Take dimensions or assess quantity

6. Network of nerves or vessels intertwined

9. Touching lightly without intersecting

10. Number before one hundred

12. Best possible condition or degree

13. Ability to understand and work with numbers

Down

2. Friendly agreement between nations

4. Position after fifth in order

5. Decorative flower shaped design or badge

7. Marine animal with five arms

8. One thousand million in number form

11. Digit or numeral in a sequence