1.5: quantitative units

Orders of magnitude with metres as standard form

Orders of magnitude with metres as standard form

Milli (10^3), micro (10^6), nano (10^9), pico (10^12)

Standard form

3.3×10^5cm=330,000cm

3.3×10^4+4.9×10²

33000+490=33490

33490=3.349×10^4

7×10³x5×10^4

35×10^9=3.5×10^10