Final answer:
To find out the years between 230 BC and 150 AD, one must add the years from each era together and then subtract 1, because there is no year zero. The calculation is (230 + 150) - 1, resulting in 379 years.
Step-by-step explanation:
To calculate the number of years between 230 BC and 150 AD, you simply add the years in the BC period to the years in the AD period. Since there is no year zero in the timeline, we need to subtract one year from the total. So, you would calculate it as 230 (BC years) + 150 (AD years) - 1 (since there is no year zero) to get the total duration between the two dates.
230 + 150 = 380
380 - 1 = 379
Therefore, there are 379 years separating the year 230 BC and the year 150 AD.