How many years is 140 CE to 1543??

That depends on whether you mean 1543 CE or BCE.

If it's 1543 BCE, then you add the two numbers.

If it's 1543 CE, then you subtract the larger from the smaller.

=)

A slight correction here: If it is 1543 BCE, then you add the two numbers and subtract one from that. The reason is that there is no year zero, one goes from 1BCE to 1CE, no zero year. So from 1BCE to 1CE, add the two number, and subtract one. 1+1-1=1 year.
Your problem is most likely 1543CE, so subtract one from the other.

1683

If it is 1543 CE, the difference between 140 CE and 1543 CE is 1403 years.

To find the number of years between 140 CE and 1543 CE, you need to subtract 140 from 1543.

1543 - 140 = 1403 years

So, there are 1403 years between 140 CE and 1543 CE.

To find the number of years between 140 CE and 1543 CE, you subtract the smaller year from the larger year:

1543 CE - 140 CE = 1403

So, there are 1403 years between 140 CE and 1543 CE.